Preposings

Obtain a breeze rod by bringing a blaze back into the overworld.

Kill a Shulker that spawns when a respawned Ender Dragon dies

Get Ancient Debris from a Piglin Brute in a Bastion Remnant

Energize some Vines into Glow Lichen

Blast Diorite or Andesite to get Calcite or Tuff

Craft Sweet Berries with a Glow Ink Sac to get Glow Berries

Get a pair of Elytra from a flying Endermite

Kill a Spider Jockey for Cobweb

Craft a Lightning Rod to help in converting Pigs

Buy all items exclusively available from the Wandering Trader

Convert Soul Sand to Soul Soil by crafting and breaking a Soul Campfire

Enter the End

Buy all types of tall flowers from the Wandering Trader

Buy all saplings from the Wandering Trader

Cure a Zombie Villager using a Weakness Potion thrown by a Witch

Use an End Gateway to generate an island containing Chorus

Craft some Glowstone for lighting

Find and Ride a Camel

Get a Silk Touch tool so you can move Grass Blocks easier

Fish for Cocoa Beans in a Jungle

Get Sweet Berries from a Fox

Compress a stack of Coal Blocks with... what else? A Falling Anvil

Kill a Wither Skeleton for Coal

Erode Dead Coral into Sand by letting Water flow out of it

Have a Goat ram into a Nether Wart Block

Craft a Golden Apple

Kill a Drowned for Copper

Make a Bed of the right color

Make your first of many trades with a Wandering Trader

Trade for Emeralds

Mobs spawn faster lower in the world

Mine some Netherrack that generates with floating nether portals

Craft Bone Blocks from Bone Meal for Extra Fireproof Blocks

Start a Wheat farm

Make an Iron Farm and get a full stack of Iron Ingots

Receive all items exclusively available from Bartering

Build a Cobblestone generator

Buy a Moss Block from the Wandering Trader

Craft a Cauldron to catch rain

Obtain Lava as a Gift from a Toolsmith

Buy some Pointed Dripstone from a Wandering Trader to Duplicate Lava

Get some Redstone from a Witch

Get Nether Quartz from Bartering

Get a Water Bucket from a Full Cauldron

Receive Gravel from Bartering

Get Soul Sand from Bartering

Strike some Pigs with Lightning to convert them to Zombified Piglins, then kill them for Gold

Get a Carrot or Potato from a Zombie and start a farm for breeding Pigs

Kill a Spider for its String

Crawl and place blocks on the bottom of top-side Trapdoors to build downward

Craft Bone Meal from Bones to grow trees faster

Kill a Witch

Kill Zombies to get Iron

Kill a Skeleton for its Bones

Enter the Nether

Kill the first of many Zombies

Get your first Sapling to grow another tree

Get your first Log

Everything from Nothing