Haven't gone through all the turns yet, but here's a rough timeline if the shared universe applies. Question marks denote points in time that are not yet set in stone by either being mentioned or played through. I was about to include Guninanrunin's Stellar Arms Race, but noted that his says the first space flight was achieved by the USSA of his game in the year 1959. As we all know, the rocket club of Arstotzka holds that honor in this timeline, managing to pull it off in 1935. Got an idea of a game in the world post-WWII world, so it will wind up advancing a bit (thinking of running it multi-forum to see what happens, but I'm not one hundred percent certain about doing so).
Timeline
1740 - Roberts Islands Colonized (?)(1742)
50
60 - American Revolution Begins (1765)
70 - Robert Islands Civil War Begins (1772)
80 - Robert Islands Design Bureaus Created (1780), American Revolution Ends (1783)
90
1800
10
20
30
40 - British Conquest of Forenia (?)(184X), First Roberts Island War Begins (?)(184X)
50
60
70
80
90 - Second Roberts Island War Begins (?) (189X)
1900
10 - Arstotzka/Moksburg War Begins (1910), Tropico Civil War Begins (1937), World War I (1914-1918), Russian Civil War Begins (1917)
20 - Russian Civil War Ends (1922)
30 - Moksburg Capitulates (1935), Forenia Revolution (1935-1936), Japanese invasion of China (1937), Spanish Civil War Begins (1937), Russian-Chinese Alliance (1937), Tropico Civil War Ends (1937)
Think this should be put up in a hub thread (ala Fire Emblem on the Forums) where the timeline could be filled in and the rules system is discussed and refined?