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VATICAN CITY – Look for a huge social media blitz when Popes John Paul II and John XXIII are canonized as saints Sunday.

The Vatican's already preparing for hundreds of thousands of pilgrims to flood the city.

If you can't make it to Rome, you can watch the event unfold ona special Facebook page, as well as Twitter, Instagram and aYouTube Channel.

It's part of an effort to reach younger audiences, according to the Vatican's communication director.

Check out old video of John Paul II's visit to St. Louis below:

Chronicling Pope John Paul II's visit to St. Louis

History of Catholicism in St. Louis

Riding horses and traveling in carriages, Polish pilgrims begin journey to Vatican where their very own Pope John Paul II will be canonized later this month. Deborah Lutterbeck reports.

Pope John Paul II's first visit to St. Louis in 1969

Special papal beer brewed for Pope John Paul II's visit

Local Jews react to Pope John Paul II's visit to St. Louis

Local protestant reaction to Pope John Paul II's visit

A look back at the 1999 visit by Pope John Paul II

A look back at the 1999 visit by Pope John Paul II

Pope John Paul II meets sick children during STL visit

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