Political

Closest election, Largest communist party, Highest personal majority, Most decisive election...

Legislatures

Monarchs of the world, Earliest parliaments, Oldest constitutions, smallest quorum...

Military & Defence

Earliest conflict, Longest war, Bloodiest civil war, Most costly war, Greatest seaborne invasion...

Judicial

Legislation and Litigation, Oldest statutes, Earliest judicial code, Most inexplicable statutes, Earliest English patent...