What do I have to read to set my campaign in the Forgotten Realms scenario of 5e?

Mirt as a Masked Lord Everybody *knows* he’s a Masked Lord, right?

The secret suites in Suzail

Why is Faerun called The Forgotten Realms?

About popular electoral systems of the Forgotten Realms

What is the size of Waterdeep?

Any news on Daurgothoth?