Lesbian, gay, bisexual, transgender and queer (LGBTQ) movements are social movements that advocate for LGBTQ people in society. Although there is not a primary or an overarching central organization that represents all LGBTQ people and their interests, numerous LGBTQ rights organizations are active worldwide. The first organization to promote LGBTQ rights was the Scientific-Humanitarian Committee, founded in 1897 in Berlin.
LGBTQ is an initialism for lesbian, gay, bisexual, transgender and queer or questioning. It is an umbrella term, broadly referring to all sexualities, romantic orientations, and gender identities which are not heterosexual, heteroromantic, cisgender, or endosex.
Sexuality and gender identity-based cultures are subcultures and communities composed of people who have shared experiences, backgrounds, or interests due to common sexual or gender identities. Among the first to argue that members of sexual minorities can also constitute cultural minorities were Adolf Brand, Magnus Hirschfeld, and Leontine Sagan in Germany. These pioneers were later followed by the Mattachine Society and the Daughters of Bilitis in the United States.
The LGBTQ community is a loosely defined grouping of lesbian, gay, bisexual, transgender, and queer or questioning individuals united by a common culture and social movements. These communities generally celebrate pride, diversity, individuality, and sexuality. LGBTQ activists and sociologists see LGBTQ community-building as a counterweight to heterosexism, homophobia, biphobia, transphobia, sexualism, and conformist pressures that exist in the larger society. The term pride or sometimes gay pride expresses the LGBTQ community's identity and collective strength; pride parades provide both a prime example of the use and a demonstration of the general meaning of the term. The LGBTQ community is diverse in political affiliation. Not all people who are lesbian, gay, bisexual, or transgender consider themselves part of the LGBTQ community.
Heteronormativity is the concept that heterosexuality is the preferred or normal sexual orientation. It assumes the gender binary and that sexual and marital relations are most fitting between people of opposite sex.
Biphobia is aversion toward bisexuality or people who are identified or perceived as being bisexual. Similarly to homophobia, it refers to hatred and prejudice specifically against those identified or perceived as being in the bisexual community. It can take the form of denial that bisexuality is a genuine sexual orientation, or of negative stereotypes about people who are bisexual. Other forms of biphobia include bisexual erasure. Biphobia may also avert towards other sexualities attracted to multiple genders such as pansexuality or polysexuality, as the idea of being attracted to multiple genders is generally the cause of stigma towards bisexuality.
Non-heterosexual is a word for a sexual orientation or sexual identity that is not heterosexual. The term helps define the "concept of what is the norm and how a particular group is different from that norm". Non-heterosexual is used in feminist and gender studies fields as well as general academic literature to help differentiate between sexual identities chosen, prescribed and simply assumed, with varying understanding of implications of those sexual identities. The term is similar to queer, though less politically charged and more clinical; queer generally refers to being non-normative and non-heterosexual. Some view the term as being contentious and pejorative as it "labels people against the perceived norm of heterosexuality, thus reinforcing heteronormativity". Still, others say non-heterosexual is the only term useful to maintaining coherence in research and suggest it "highlights a shortcoming in our language around sexual identity"; for instance, its use can enable bisexual erasure.
LGBTQ culture is a culture shared by lesbian, gay, bisexual, transgender, and queer individuals. It is sometimes referred to as queer culture, LGBT culture, and LGBTQIA culture, while the term gay culture may be used to mean either "LGBT culture" or homosexual culture specifically.
A sexual minority is a demographic whose sexual identity, orientation or practices differ from the majority of the surrounding society. Primarily used to refer to lesbian, gay, bisexual, or non-heterosexual individuals, it can also refer to transgender, non-binary or intersex individuals.
Homosexuality is sexual attraction, romantic attraction, or sexual behavior between members of the same sex or gender. As a sexual orientation, homosexuality is "an enduring pattern of emotional, romantic, and/or sexual attractions" exclusively to people of the same sex or gender. It "also refers to a person's sense of identity based on those attractions, related behaviors, and membership in a community of others who share those attractions."
Bisexual erasure, also called bisexual invisibility, is the tendency to ignore, remove, falsify, or re-explain evidence of bisexuality in history, academia, the news media, and other primary sources.
LGBTQ movements in the United States comprise an interwoven history of lesbian, gay, bisexual, transgender and queer social movements in the United States of America, beginning in the early 20th century. A commonly stated goal among these movements is social equality for LGBTQ people. Some have also focused on building LGBTQ communities or worked towards liberation for the broader society from biphobia, homophobia, and transphobia. LGBTQ movements organized today are made up of a wide range of political activism and cultural activity, including lobbying, street marches, social groups, media, art, and research. Sociologist Mary Bernstein writes:
For the lesbian and gay movement, then, cultural goals include challenging dominant constructions of masculinity and femininity, homophobia, and the primacy of the gendered heterosexual nuclear family (heteronormativity). Political goals include changing laws and policies in order to gain new rights, benefits, and protections from harm.
A same-sex relationship is a romantic or sexual relationship between people of the same sex. Same-sex marriage refers to the institutionalized recognition of such relationships in the form of a marriage; civil unions may exist in countries where same-sex marriage does not.
Various issues in medicine relate to lesbian, gay, bisexual, transgender and queer (LGBTQ) people. According to the US Gay and Lesbian Medical Association (GLMA), besides HIV/AIDS, issues related to LGBTQ health include breast and cervical cancer, hepatitis, mental health, substance use disorders, alcohol use, tobacco use, depression, access to care for transgender persons, issues surrounding marriage and family recognition, conversion therapy, refusal clause legislation, and laws that are intended to "immunize health care professionals from liability for discriminating against persons of whom they disapprove."
Lesbian, gay, bisexual, transgender (LGBT) affirming denominations in Judaism are Jewish religious groups that welcome LGBTQ members and do not consider homosexuality to be a sin. They include both entire Jewish denominations, as well as individual synagogues. Some are composed mainly of non-LGBT members and also have specific programs to welcome LGBT people, while others are composed mainly of LGBT members.
Sexual diversity or gender and sexual diversity (GSD), refers to all the diversities of sex characteristics, sexual orientations and gender identities, without the need to specify each of the identities, behaviors, or characteristics that form this plurality.
In the past most lesbian, gay, bisexual, transgender, and queer (LGBTQ) personnel had major restrictions placed on them in terms of service in the United States military. As of 2010 sexual orientation and gender identity in the United States military varies greatly as the United States Armed Forces have become increasingly openly diverse in the regards of LGBTQ people and acceptance towards them.
Queer erasure refers to the tendency to intentionally or unintentionally remove LGBTQ groups or people from record, or downplay their significance, which includes lesbian, gay, bisexual, transgender, and queer people. This erasure can be found in a number of written and oral texts, including popular and scholarly texts.
Homonormativity is the adoption of heteronormative ideals and constructs onto LGBT culture and identity. It is predicated on the assumption that the norms and values of heterosexuality should be replicated and performed among homosexual people. Those who assert this theory claim homonormativity selectively privileges cisgender homosexuality as worthy of social acceptance.
LGBTQ portal 
