Marvel Movie Order

Captain America: The First Avenger (takes place during WWII)
Captain Marvel (takes place in 1995)
Iron Man (takes place in 2010)
Iron Man 2 (takes place after Iron Man)
The Incredible Hulk (time unspecified, pre-Avengers)
Thor (takes place six months before Avengers)
The Avengers (takes place in 2012)
Iron Man 3 (takes place six months after The Avengers)
Thor: Dark World (post-Avengers, pre-Ultron)
Captain America: Winter Soldier (post-Avengers, pre-Ultron)
Guardians of the Galaxy (sometime in 2014)
Guardians of the Galaxy Vol. 2 (after Guardians)
Avengers: Age of Ultron (takes place in 2015)
Ant-Man (takes place in 2015)
Captain America: Civil War (post-Ultron, pre-Infinity War)
Black Widow (takes place right after Civil War)
Spider-Man: Homecoming (post-Civil War, pre-Infinity War)
Doctor Strange (takes place in 2016)
Black Panther (takes place in 2017)
Thor: Ragnarok (post-Ultron, pre-Infinity War)
Avengers: Infinity War (takes place in 2017)
Ant-Man and The Wasp (ambiguous, but fits nicely between IW and Endgame)
Avengers: Endgame (starts in 2017, finishes in 2022)
Spider-Man: Far From Home (eight months post-Endgame)
Shang-Chi and the Legend of the Ten Rings (set in the present day of the MCU)