Laws of Washington 1909 c 249 § 204 amended the state's sodomy law to include oral sex, added a clause to specifically criminalize voluntarily submitting to 'carnal knowledge', and lowered the penalty to "imprisonment in the state penitentiary for not more than ten years".

California enacted a law in 1909 that provided for the sterilization of persons convicted two or more times of sexual offences if they showed evidence while in prison of being a "moral or sexual pervert". During this period, an estimated 20,000 people were sterilised, many for same-sex sexual intercourse. The law allowing sterilisation was not repealed until 1972 but they were rare after 1950.

From 1908 until 1933, transvestite passes were handed out to trans and cross-dressing Germans as a de facto recognition of their gender identity or expression. However there were no known provisions that legally changed one's gender. These were revoked when the Nazis came to power.

The age of consent in Eswatini is 18 for heterosexual sex. However, sodomy is illegal in Eswatini so the age of consent is irrelevant for males. Regarding lesbian sex, due to there being no laws criminalizing it, the age of consent is also 18.

Sodomy in Eswatini is considered illegal under the 1907 Roman-Dutch common law, that Eswatini uses as their own. The common laws carry penalties ranging from death to lesser punishments as decided by the court. The term “sodomy” was defined by the courts as “unlawful and intentional sexual relations per anum between two human males.” However, punishment is not enforced, and The Minister of Justice has consistently stated that their policy is to refrain from prosecuting consenting adults.

The Qing Dynasty decriminalized being gay in 1907 in an attempt to modernize, leading the succeeding states to have no anti-gay laws

The Criminal Code of the Australian colony of Queensland, drafted in 1899 by the colony’s chief justice, Sir Samuel Griffith, came into force in 1901. The Code expanded the terms of criminalisation established under the Indian Penal Code to criminalise both partners who engage in male same-sex activity.

In the 1900 crimes act the age of consent is defined gender neutrally.