Spoilers abound, but Avengers: Infinity War finally demonstrated the fearsome power of the Infinity Stones as wielded by Thanos. Killing half of all living things in the universe with a finger-snap is a showcase of just how overpowered these items are. But where did the Infinity Stones come from, anyway?
The movie notes how they were created with the Big Bag as material manifestations of the guiding concepts of existence in the universe, and they’ve assumed other forms throughout the eons. Here’s a list of where in the MCU films each specific Infinity Stone originally appeared or was first referenced.
- Space Stone – contained in the Tesseract, a “jewel in Odin’s treasure vaultâ€
- Thor (2010) – post-credit scene
- Captain America: The First Avenger (2011) – main plot item
- Avengers (2012) – used by Loki to open a wormhole for the Chitauri invasion over New York City
- Mind Stone – originally in Thanos’ possession, housed in the scepter he gives Loki
- Avengers (2012) – used by Loki (in scepter form) for mind-controlling minions and as a weapon
- Captain America: The First Avenger (2014) – post-credits revealed to have been given to HYDRA by SHIELD moles; used by Baron Strucker to empower the Maximoff twins
- Avengers: Age of Ultron (2015) – used by Tony Stark to create Ultron AI; seized by Ultron to brainwash scientists to create him a new body (Vision) with the revealed stone as a power source
- Reality Stone – used as the fluid-like power source Aether
- Thor: the Dark World (2013) – in Aether form, used by Dark Elf leader Malekith until recovered by the Asgardians and given to the Collector
- Power Stone – housed in an Orb
- Guardians of the Galaxy (2014) – acquired by Peter Quill from a space ruin; ostensibly sought after by Ronan for Thanos, but plans to use against him; recovered by the newly-formed Guardians and left with the Xandar Nova Corps…until later taken by Thanos
- Time Stone – hidden by the first Earth Sorcerer Agamotto in an amulet, the Eye of Agamotto
- Doctor Strange (2016) – kept in the mystic sanctuary of Kamar-Taj, until used by Stephen Strange to fight Dormammu
- Soul Stone – stored on the planet Vormir, where it was kept by a cursed Red Skull
- Avengers: Infinity War (2018) – location found beforehand by Gamora, and coerced out of her by Thanos