Construct a Dispenser.

Place 9 fully explored, adjacent Maps into 9 Item Frames in a 3 by 3 square.

Defeat an Evoker.

Discover 17 of 40 biomes.

Stop starvation using Rotten Flesh.

Build some bookshelves to improve your enchantment table.

Breed two cows with wheat.

Craft and place a sign.

Turn wheat into bread.

Construct one type of each tool (one pickaxe, one spade, one axe and one hoe).

Use planks and sticks to make a pickaxe.

Wear a full suit of Iron armour.

Construct a furnace out of eight cobblestone blocks.