What time period did people start using ''gay'' as being homosexual instead of being happy?

around 1914

Explanation: because they would blame herps on them

The term's use as a reference to homosexuality may date as early as the late 19th century.

Explanation:

Grover Cleveland

Grover Cleveland served as the 22nd and 24th president of the United States, and was the only president in history to serve two non-consecutive terms in office (1885–1889 and 1893–1897).

During his second administration, the Panic of 1893 began, which produced a severe depression. This affected every aspect of the economy.

The depression and Cleveland's inability to reverse it ruined the Democratic Party, opening the way for a Republican landslide in 1894. The result was a political realignment that launched the Progressive Era.