Hong Kong's National Security Education Day, organized to promote the sweeping legislation China imposed last year, was marked with school activities, games and shows, and a parade by police and other services.
Muslims the world over join their families to break the fast at sunset and go to mosques to pray. But the pandemic has disrupted observances for the second year, with curbs on large gatherings for prayers and public iftars.
Central American migrants journey to the U.S. border, the COVID vaccine rolls out worldwide, America grieves after two mass shootings in a week, and more top photos from March 2021. Produced by David Lucas.