It was an announcement unlike any we've seen in nearly 600 years.
On Monday, Pope Benedict XVI said he will be the first pontiff since Gregory XII in 1415 to step down.
The conclave of cardinals will meet in Rome after Benedict steps down on Feb. 28, to elect a new pope.
There has already been much speculation about who Benedict's successor will be. We want to know what you feel is the most important issue facing the new pope.
What should the new pontiff address first, and why?
Let us know in the comment section below.