In fact.........per wiki, it is..............one of the "birthplaces of Masonic teachings in America."^[2]

Tun Tavern was a tavern and brewery in Philadelphia, Pennsylvania, which served as a founding or early meeting place for a number of notable groups. It is traditionally regarded as the site where what would become the United States Marine Corps held its first recruitment drive during the American Revolution.^[1] It is also regarded as one of the "birthplaces of Masonic teachings in America."^[2]