U.S. Ambassador to the U.N. Linda Thomas-Greenfield chaired Monday meeting
Activists from Colombia, Afghanistan expected to speak at March 20 gathering
Advocates organize parades, protests and forums throughout the year
Florida Republican blasts ‘tyrants ruling’ her homeland
The measure passed by a 39-12 vote margin
Thousands celebrate in Brazil and Israel, while Russians face arrest
Organizer described event as ‘huge success’
Region last European jurisdiction to repeal sodomy law
