Transgender
One effort to quantify the population gave a "rough estimate" that 0.3 percent of adults in the US are transgender, overlapping to an unknown degree with the estimated 3.5 percent of US adults (1-in-30) who identify as LGBT. More recent studies released in 2016 estimate the proportion of Americans who identify as transgender at 0.5 to 0.6%. This would put the total number of transgender Americans at approximately 1.4 million adults ().
LGBT movements in the United States
Transgender advocacy efforts did not begin to gain momentum, however, until the 1950s, in the wake of the unprecedented publicity given to Christine Jorgensen, whose 1952 "sex-change" operation made her an international celebrity and brought transgender issues to widespread attention.