r/AlternateHistory is a subreddit with 263k members. The community frequently discusses alternate history, what if, world war, cold war, and europe, and the most common flair used is 1900s, post 2000s, 1700-1900s, pre-1700s, and althist help.
The original alternate history subreddit
Popular Topics in r/AlternateHistory
#1
Alternate History
132 posts
#2
What If
74 posts
#3
World War
15 posts
#4
Cold War
12 posts
#5
Europe
12 posts
#6
America
11 posts
#7
World
9 posts
#8
Axis Victory
7 posts
#9
Maps
7 posts
#10
World War Ii
6 posts
Flair Used in r/AlternateHistory
#1
1900s
: "What if the monkey missed? The Triumph of the Megali Idea and the Greek Victory of 1922"
84 posts
#2
Post 2000s
: "Total Nato Victory The Fire Rises"
41 posts
#3
1700-1900s
: "What if the story were perfect for Russia?"
23 posts
#4
Pre-1700s
: "What if Novgorod beat Muscovy and united Russia?"
22 posts
#5
Althist Help
: "Plausiblity Check: Could a Canada with these borders survive and/or still form?"
12 posts
#6
Pop culture
: "Go Spurs Go!"
5 posts
#7
ASB Sundays
: "What if the Americas never fully split? A Super Roman Empire across the Mediterranean and Caribbean."
4 posts
#8
2026
: "The homepage UI of Clover, a modernised 4chan which evolved to become less hostile"
2 posts
#9
1990s-today
: "What if the 1993 Russian Constitutional Crisis turned into a civil war?"
2 posts
#10
Media Discussion
: "For All Mankind alternate history"
2 posts
Member Growth in r/AlternateHistory
Yearly
+29k members(12.4%)
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Last updated: June 30, 2026