How did World Christianity change after Oct. 11, 1962?

today (Thursday, Oct. 11, 1962) in the Writer's Almanac (American Public Media: Garrison Keillor):

It was on the eleventh day in October in 1962 that Pope John XXIII convened the first session of the Second Vatican Council, also known as Vatican II, with the goal of bringing the church up to date with the modern world. More than 3,000 delegates attended, including many of the Catholic bishops from around the world, theologians, and other church officials.

As a result of Vatican II, Catholics were allowed to pray with Protestants and attend weddings and funerals in Protestant churches; priests were encouraged to perform mass facing the congregation, rather than facing the altar; and priests were allowed to perform mass in languages other than Latin, so that parishioners could finally understand what was being said throughout the service.