Why not try finding out about some of these?
1250 years - Alfred the Great becomes King of England
300 years - First British Prime Minister takes office
125 years - London hosts world's first motor show
100 years - Royal British Legion founded
60 years - Yuri Gagarin first human into space
30 years - First British astronaut goes into orbit
BBC - Lots of history things on the BBC website
YAC - Young Archaeologists' Club
Topmarks - Pages of links to lots of websites
History for Kids - Topics for world wide history
Burbage Heritage - History about where you live!
Hinckley Museum - Have you visited your local museum?
History Timeline - Topics explained in order