Politics and Government
The oldest surviving parliament is in Iceland. It first met in 930 AD.
Sobhuza II, king of Swaziland, had the longest monarchial reign documented lasting 82 years and 9 months!
Among the moguls, only Aurangzeb treated treasury as separate from his personal income; other rulers made no such distinction.
Clinton, Bush and Obama each won US Presidential re-election. The only other three consecutive presidents to win re-election: Jefferson, Madison and Monroe.
While in power, Stalin banned crosswords since he believed them to be 'bourgeois and degenerate'.