Could you put all these stories in chronological order?

Sure. Here are the animated stories and some notable side stories, with their U.C. (Universal Century) calendar dates. Official animated stories are marked below in bold.

	U.C. 0079		Zeonic Front (video game, novel) Mobile Suit Gundam Mobile Suit Gundam I, II, III The 08th MS Team The 08th MS Team: Miller's Report Cross Dimension 0079 (video game) Lost War Chronicles (video game, comic, novel) The Blue Destiny (video game, comic, novel) Side Story 0079: Rise From The Ashes (video game, novel) Encounters in Space (video game, comic) Gundam 0080: War in the Pocket Gundam The Ride: A Baoa Qu (theme-park ride)
	U.C. 0083		Gundam 0083: Stardust Memory Gundam 0083: Last Blitz of Zeon
	U.C. 0087		Zeta Gundam Green Divers (theatrical presentation)
	U.C. 0088		Gundam Sentinel (novel, photo-novel) Mobile Suit Gundam ZZ
	U.C. 0090		Double Fake (comic)
	U.C. 0093		Char's Counterattack
	U.C. 0105		Hathaway's Flash (novel)
	U.C. 0120		Mobile Suit Gundam F90 (comic)
	U.C. 0122		Formula Wars 0122 (video game)
	U.C. 0123		Silhouette Formula 91 (comic) Mobile Suit Gundam F91
	U.C. 0133		Crossbone Gundam (comic)
	U.C. 0153		Victory Gundam
	U.C. 0203		Gaia Gear (novel, radio drama)
	U.C. 0223		G-Saviour

Most of the recent Gundam television series take place in alternate worlds, each with their own calendars. G Gundam uses the F.C. (Future Century) calendar, Gundam Wing uses the A.C. (After Colony) calendar, Gundam X uses the A.W. (After War) calendar, Gundam Seed uses the C.E. (Cosmic Era) calendar, and Turn A Gundam uses a new calendar known by the initials C.C.. Again, official animated stories are marked below in bold.

	F.C. 60		G Gundam
	A.C. 187~		Gundam Wing: Episode Zero (comic)
	A.C. 195		Gundam Wing Gundam Wing: The Last Outpost (comic)*
	A.C. 196		Gundam Wing: Blind Target (comic, radio drama) Gundam Wing: Battlefield of Pacifists (comic) Gundam Wing: Endless Waltz Gundam Wing: Endless Waltz Special Edition
	A.W. 0015		Gundam X
	C.E. 71		Gundam Seed Gundam Seed Astray
	C.C. 2345		Turn A Gundam

* Released in Japan as "Gundam Wing Dual Story: G-UNIT."