Final answer:
Frank Kameny was an American astronomer who became a leading figure in the LGBTQ rights movement after being dismissed for his sexual orientation. He revived the Mattachine Society of Washington and was central in organizing early LGBTQ protests and securing ACLU support for discrimination claims.
Step-by-step explanation:
The student seems to have made a typo in the name as there is no widely recognized historical figure named Mier Katz. However, the information provided suggests the discussion is about Frank Kameny, an important figure in LGBTQ activism. Frank Kameny, after facing discrimination for being gay, which led to his dismissal from his position as a government astronomer, channeled his frustration into political activism. He played a pivotal role in reviving the Mattachine Society of Washington, which focused on challenging discriminatory policies of the federal government. Kameny was instrumental in organizing early gay and lesbian protests, securing the support of the American Civil Liberties Union (ACLU) for fighting against gay discrimination, and became an inspiration for many LGBTQ activists through his fiery speeches and tireless activism.