Mobs
Killing this is often considered beating the game.
What is the Ender Dragon?
This underground structure is the only place you will find a naturally generate End Portal.
What is a Stronghold?
This is the version that the End dimension was added.
What is 1.0?
Before you enchant something, you need this ore.
What is Lapis Lazuli?
Until 1.16, this was the best ore in the game.
What are Diamonds?
These are the only mobs that can spawn naturally in all three dimensions.
What are Endermen?
This is typically the first structure you look for when you start a new world.
What is a Village?
Pistons were added in this version.
What is Beta 1.7?
You can enchant with an enchanting table at any time, but you will get better enchantments if you have 15 of these surrounding it.
What are Bookshelves?
These explosive mobs were originally meant to be pigs.
What are Creepers?
This was the first structure added to the Nether.
What is a Nether Fortress?