Chicago-born missionary Robert Prevost became the 267th pontiff to lead the Catholic Church in a moment of global turmoil and conflict.

In the process, he became the first U.S. pope.

Prevost, a 69-year-old member of the Augustinian religious order who spent his career ministering in Peru, took the name Leo XIV.

As you might imagine, the sports loyalties of Pope Leo XIV became a topic of conversation. He attended Villanova University near Philadelphia, where he received a Bachelor of Science in 1977. Chicago’s two baseball teams were front and center as sports fans reacted to the news. It was initially reported that the new pope was a Cubs fan. But his brother, John Prevost, set the record straight in an interview with WGN-TV. The pope is a White Sox fan.

Social media posts and memes exploded across social media soon after Pope Leo XIV was named and appeared outside the Vatican.

Here’s just a sampling:

The last pope to take the name Leo was Leo XIII, an Italian who led the church from 1878 to 1903. That Leo softened the church’s confrontational stance toward modernity, especially science and politics and laid the foundation for modern Catholic social thought. His most famous encyclical, Rerum Novarum of 1891, addressed workers’ rights and capitalism at the beginning of the industrial revolution and was highlighted by the Vatican in explaining the new pope’s choice of name.

The Associated Press contributed to this report.