The swift development of effective vaccines against COVID-19 was an unprecedented scientific achievement. But production challenges, vaccine nationalism, and new variants have all presented hurdles.

A growing number of countries are legalizing same-sex marriage amid a steady advance in rights for LGBTQ+ people, but opposition remains strong in many others.

Since its postwar founding, the UN agency has garnered both praise and criticism for its response to international public health crises, including the COVID-19 pandemic.

Violence continues to rage more than a decade after the Mexican government launched a war against drug cartels.