Kill the Enderdragon.

Respawn the Enderdragon.

Create an Iron Golem.

Use a saddle to ride a pig, then have the pig get hurt from fall damage while riding it.

Dye your bed a different color.

Eat a Notch Apple.

Use a hopper to move an item from a chest minecart to a chest. [Bedrock Only]

Lead a caravan containing at least 5 Llamas.

Gain the trust of an Ocelot.

Defeat an Elder Guardian.

Discover 17 of 40 biomes.

When staring into the face of adversity, show courage and persevere.