Historically, bisexuality has largely been free of the social stigma associated with homosexuality, prevalent even where bisexuality was the norm. In Ancient Greece pederasty was not problematic as long as the men involved eventually married and had children. In many world cultures, homosexual affairs have been quietly accepted among upper-class men of good social standing (particularly if married), and heterosexual marriage has often been used successfully as a defense against accusations of homosexuality. On the other hand, there are bisexuals who marry or live with a heterosexual partner because they prefer the complementarity of different sexes in cohabiting and co-parenting but have felt greatly enriched by homosexual relationships alongside the marriage in both monogamous and "open" relationships.
Some scholars, most notably the Yale professor and historian John Boswell (1947–94), have argued that same-sex unions were recognized by the Roman Catholic Church in medieval Europe, although others have disputed this claim. Scholars and the general public became increasingly interested in the issue during the late 20th century, a period when attitudes toward homosexuality and laws regulating homosexual behaviour were liberalized, particularly in western Europe and the United States.
This rainbow flag in Italy was first used in a peace march in 1961, inspired by similar multi-coloured flags used in demonstrations against nuclear weapons. It became popular with the Pace da tutti i balconi ("peace from every balcony") campaign in 2002, started as a protest against the impending war in Iraq. The most common variety has seven colours, purple, blue, azure, green, yellow, orange and red, and is emblazoned in bold with the Italian word PACE, meaning "peace".
Krafft-Ebing was the first to suggest that bisexuality is the original state of human sexuality. Freud has famously summarized on the basis of clinical observations: "[W]e have come to know that all human beings are bisexual - - and that their libido is distributed between objects of both sexes, either in a manifest or a latent form." According to Freud, people remain bisexual all their lives in a repression to monosexuality of fantasy and behavior. This idea was taken up in the 1940s by the zoologist Alfred Kinsey who was the first to create a scale to measure the continuum of sexual orientation from hetero to homosexuality. Kinsey studied human sexuality and argued that people have the capability of being hetero or homosexual even if this trait does not present itself in the current circumstances.
Homosexuality is immoral and unnatural. J. Matt Barber, Associate Dean for Online Programs at Liberty University School of Law, stated that "Every individual engaged in the homosexual lifestyle, who has adopted a homosexual identity, they know, intuitively, that what they're doing is immoral, unnatural, and self-destructive, yet they thirst for that affirmation." A 2003 set of guidelines signed by Pope John Paul II stated: "There are absolutely no grounds for considering homosexual unions to be in any way similar or even remotely analogous to God's plan for marriage and family... Marriage is holy, while homosexual acts go against the natural moral law."  Former Arkansas governor and Republican presidential candidate Mike Huckabee stated in Oct. 2014 that gay marriage is "inconsistent with nature and nature’s law." 
In Papua New Guinea, same-sex relationships were an integral part of the culture of certain tribes until the middle of the last century. The Etoro and Marind-anim for example, even viewed heterosexuality as wasteful and celebrated homosexuality instead. They believed that in sharing semen, they are sharing their life force, yet women simply wasted this force any time they didn't get pregnant after sex. In many traditional Melanesian cultures a prepubertal boy would be paired with an older adolescent who would become his mentor and who would "inseminate" him (orally, anally, or topically, depending on the tribe) over a number of years in order for the younger to also reach puberty.
Scientific research has been generally consistent in showing that lesbian and gay parents are as fit and capable as heterosexual parents, and their children are as psychologically healthy and well-adjusted as children reared by heterosexual parents. According to scientific literature reviews, there is no evidence to the contrary.
The event is organised by COGAM (Madrid GLTB Collective) and FELGTB (Spanish Federation of Lesbians, Gays, Transsexuals and Bisexuals) and supported by other national and international LGTB groups. The first Gay Parade in Madrid was held after the death of Franco, with the arrival of democracy, in 1979. Since then, dozens of companies like Microsoft, Google and Schweppes and several political parties and trade unions, including Spanish Socialist Workers' Party, PODEMOS, United Left, Union, Progress and Democracy, CCOO and UGT have been supporting the parade. Madrid Pride Parade is the biggest gay demonstration in Europe, with more than 1.5 million attendees in 2009, according to the Spanish government.
When someone is born with sex characteristics that differ from what is typically seen as female or male traits, they are known as intersex. For instance, in some cases, a person’s body has both male and female characteristics. Another instance is where a person’s chromosomal make-up is neither typically male nor female. These characteristics might be present at birth or become more apparent during or after puberty.
Altering one's birth sex is not a one-step procedure; it is a complex process that occurs over a long period of time. Transition can include some or all of the following personal, medical, and legal steps: telling one's family, friends, and co-workers; using a different name and new pronouns; dressing differently; changing one's name and/or sex on legal documents; hormone therapy; and possibly (though not always) one or more types of surgery. The exact steps involved in transition vary from person to person. Avoid the phrase "sex change".
The Copenhagen Pride festival is held every year in August. In its current format it has been held every year since 1996, where Copenhagen hosted EuroPride. Before 1994 the national LGBT association organised demonstration-like freedom marches. Copenhagen Pride is a colourful and festive occasion, combining political issues with concerts, films and a parade. The focal point is the City Hall Square in the city centre. It usually opens on the Wednesday of Pride Week, culminating on the Saturday with a parade and Denmark's Mr Gay contest. In 2017, some 25,000 people took part in the parade with floats and flags, and about 300,000 were out in the streets to experience it.
Anthropologists have struggled to determine a definition of marriage that absorbs commonalities of the social construct across cultures around the world. Many proposed definitions have been criticized for failing to recognize the existence of same-sex marriage in some cultures, including in more than 30 African cultures, such as the Kikuyu and Nuer.
The concepts of gender identity and transgender identity differ from that of sexual orientation. Sexual orientation describes an individual's enduring physical, romantic, emotional, or spiritual attraction to another person, while gender identity is one's personal sense of being a man or a woman. Transgender people have more or less the same variety of sexual orientations as cisgender people. In the past, the terms homosexual and heterosexual were incorrectly used to label transgender individuals' sexual orientation based on their birth sex. Professional literature now uses terms such as attracted to men (androphilic), attracted to women (gynephilic), attracted to both (bisexual) or attracted to neither (asexual) to describe a person's sexual orientation without reference to their gender identity. Therapists are coming to understand the necessity of using terms with respect to their clients' gender identities and preferences. For example, a person who is assigned male at birth, transitions to female, and is attracted to men would be identified as heterosexual.
LGBT (lesbian, gay, bisexual, and transgender) activist collective Against Equality states that "Gay marriage apes hetero privilege... [and] increases economic inequality by perpetuating a system which deems married beings more worthy of the basics like health care and economic rights."  The leaders of the Gay Liberation Front in New York said in July 1969, "We expose the institution of marriage as one of the most insidious and basic sustainers of the system. The family is the microcosm of oppression."  Self-described queer activist Anders Zanichkowsky stated in June 2013 that the campaign for gay marriage "intentionally and maliciously erases and excludes so many queer people and cultures, particularly trans and gender non-conforming people, poor queer people, and queer people in non-traditional families... marriage thinks non-married people are deviant and not truly deserving of civil rights." 
On August 3, 2012 the first LGBT Viet Pride event was held in Hanoi, Vietnam with indoor activities such as film screenings, research presentations, and a bicycle rally on August 5, 2012 that attracted almost 200 people riding to support the LGBT cause. Viet Pride has since expanded, now taking place in 17 cities and provinces in Vietnam in the first weekend of August, attracting around 700 bikers in 2014 in Hanoi, and was reported on many mainstream media channels.
Medical Condition While no consistent diagnoses is given to transgender people, some may qualify for a diagnosis under Gender Dysphoria or Intersex conditions. DSM-V labels transsexual people Gender Dysphoric, a label contested by many trans people who say the problem is physical, not mental. Typically medical and/or surgical intervention to align one's sex and gender aids in feeling of dysphoria
In Essen, Germany in 1922, the International Co-operative Alliance (ICA) designed an international co-op symbol and a flag for the first "Co-operators' Day," which was held in July 1923. After some experiments with different designs, a famous French cooperator, Professor Charles Gide, suggested using the seven colours of the rainbow for the flag. He pointed out that the rainbow symbolized unity in diversity and the power of light, enlightenment and progress. The first co-op rainbow flag was completed in 1924 and was adopted as an official symbol of the international cooperative movement in 1925.
American Medical Association, American Academy of Pediatrics, American Psychological Association, American Psychiatric Association, American Association for Marriage and Family Therapy, National Association of Social Workers, American Psychoanalytic Association, American Academy of Family Physicians; et al. "Brief of [medical organizations] as Amici Curiae in Support of Petitioners" (PDF). supremecourt.gov. Retrieved 5 April 2018.
One study surveyed more than 1,500 lesbian, gay and bisexual adults across the nation and found that respondents from the 25 states that have outlawed same-sex marriage had the highest reports of "minority stress"—the chronic social stress that results from minority-group stigmatization—as well as general psychological distress. According to the study, the negative campaigning that comes with a ban is directly responsible for the increased stress. Past research has shown that minority stress is linked to health risks such as risky sexual behavior and substance abuse.
On June 8, 2017, the city of Philadelphia adopted a revised version of the flag. The design adds black and brown stripes to the top of the standard six-color flag, "to highlight black and brown LGBTQIA members within the city's community". Some LGBT activists in Philadelphia and other communities criticised the flag as unnecessary and divisive.
In 2015, the American National Center for Transgender Equality conducted a National Transgender Discrimination Survey. Of the 27,715 transgender and non-binary people who took the survey, 21% said the term "queer" best described their sexual orientation, 18% said "pansexual", 16% said "gay", "lesbian", or "same-gender-loving", 15% said "straight", 14% said "bisexual", and 10% said "asexual".
On 5 January 2016, a court in Changsha, southern Hunan Province, agreed to hear the lawsuit of 26-year-old Sun Wenlin filed in December 2015 against the Bureau of Civil Affairs of Furong District for its June 2015 refusal to let him marry his 36-year-old male partner, Hu Mingliang. On 13 April 2016, with hundreds of same-sex marriage supporters outside, the Changsha court ruled against Sun, who vowed to appeal, citing the importance of his case for LGBT progress in China.
In November 2015, the National LGBT Taskforce of Israel petitioned the Supreme Court of Israel to allow same-sex marriage in the country, arguing that the refusal of the rabbinical court to recognise same-sex marriage should not prevent civil courts from performing same-sex marriages. The court handed down a ruling on 31 August 2017, determining the issue was the responsibility of the Knesset, and not the judiciary.
+ UN decl. sign. Concubinage union since 2008 Legal since 2013 Legal since 2009 Since 2009 Bans all anti-gay discrimination. Pathologization or attempted treatment of sexual orientation by mental health professionals illegal since 2017 Transgender persons can change their legal gender and name without surgeries or judicial order required since 2009. Self-determination since 2018.
Scientific literature indicates that parents' financial, psychological and physical well-being is enhanced by marriage and that children benefit from being raised by two parents within a legally recognized union (either a mixed-sex or same-sex union). As a result, professional scientific associations have argued for same-sex marriage to be legally recognized as it will be beneficial to the children of same-sex parents or carers.
 Glen Lavy, JD, senior counsel with the Alliance Defense Fund, argued in a May 21, 2008 Los Angeles Times op-ed, "The movement for polygamy and polyamory is poised to use the successes of same-sex couples as a springboard for further de-institutionalizing marriage."  In Apr. 2013 Slate writer Jillian Keenan wrote: "Just like heterosexual marriage is no better or worse than homosexual marriage, marriage between two consenting adults is not inherently more or less 'correct' than marriage among three (or four, or six) consenting adults."  James C. Dobson, Founder and Chairman of Focus on the Family, predicted in 2005 that legalizing same-sex marriage will enable "group marriage," "marriage between daddies and little girls," and "marriage between a man and his donkey." 
Whether the kink community should be added in the acronym LGBT is a heated debate, but there is no denying that the community has several of its own flags. This one was designed by Tony DeBlase for Chicago’s International Mr. Leather celebration in 1989. This symbol is not exclusively gay, but rather for the leather and BDSM community. The original flag is on display at the Leather Archives and Museum in Chicago.
A study published on Apr. 13, 2009 in Social Science Quarterly found that "[l]aws permitting same-sex marriage or civil unions have no adverse effect on marriage, divorce, and abortion rates, [or] the percent of children born out of wedlock."  A Nov. 2011 study by UCLA's Williams Institute reported that the rate at which legally recognized same-sex couples (in marriages or civil unions, etc.) end their relationships is 1.1% on average, while 2% of married different-sex couples divorce annually.  The Executive Board of the American Anthropological Association found that more than a century of research has shown "no support whatsoever for the view that either civilization or viable social orders depend upon marriage as an exclusively heterosexual institution. Rather, anthropological research supports the conclusion that a vast array of family types, including families built upon same-sex partnerships, can contribute to stable and humane societies." 
Transgender people of all kinds, including transsexual people, can be gay, lesbian, bisexual, or asexual. Sexual orientation is not linked to gender identity. A transsexual person who undergoes gender reassignment surgery may be perceived as having an orientation change if they go from being interested in the "same" gender to the "opposite" gender or vice versa because of their own transition.
Author and journalist Jonathan Rauch has argued that marriage is good for all men, whether homosexual or heterosexual, because engaging in its social roles reduces men's aggression and promiscuity. The data of current psychological and other social science studies on same-sex marriage in comparison to mixed-sex marriage indicate that same-sex and mixed-sex relationships do not differ in their essential psychosocial dimensions; that a parent's sexual orientation is unrelated to their ability to provide a healthy and nurturing family environment; and that marriage bestows substantial psychological, social, and health benefits. Same-sex parents and carers and their children are likely to benefit in numerous ways from legal recognition of their families, and providing such recognition through marriage will bestow greater benefit than civil unions or domestic partnerships.
^ "Making colleges and universities safe for gay and lesbian students: Report and recommendations of the Governor's Commission on Gay and Lesbian Youth" (PDF). Massachusetts. Governor's Commission on Gay and Lesbian Youth., page 20. "A relatively recent tactic used in the backlash opposing les/bi/gay/trans campus visibility is the so-called "heterosexual pride" strategy".
Legal recognition of same-sex marriages in South Africa came about as a result of the Constitutional Court's decision in the case of Minister of Home Affairs v Fourie. The court ruled on 1 December 2005 that the existing marriage laws violated the equality clause of the Bill of Rights because they discriminated on the basis of sexual orientation. The court gave Parliament one year to rectify the inequality.