We get it: the Marvel Cinematic Universe has a ton of lore, and it can be hard to keep track of it all, especially as the movies get increasingly bonkers. But worry not, true believers. We’ve taken the time to lay it all out as clearly as can be. Read on for the complete timeline to the Marvel Cinematic Universe, from “Iron Man” to “Avengers: Endgame.”

The Beginning of Time

The Big Bang explodes from six preexisting singularities. As the universe is created, remnants of these singularities are forged into objects with incredible power over specific aspects of existence: Space, Mind, Reality, Power, Soul and Time. These objects, eventually known as the Infinity Stones, become dispersed throughout the universe, often in forms that make their true nature unrecognizable.

The Distant Past

Celestials, the most ancient beings in the universe, come into existence and gradually become sentient.

The oldest of them,...