June 26, 2003 - Lawrence v. Texas, making same-sex intercourse legal everywhere in the United States.
June 26, 2013 - United States v. Windsor, making the federal government's restriction of marriage to heterosexual couples invalid.
June 26, 2015 - Obergefell v. Hodges, making same-sex marriage legal everywhere in the United States.
This day has been historic for the furthering of the rights of many millions of Americans, and I believe we should immortalize it in a federal way by making it a national holiday.