Updated timelines

The History of Computing
Mrs. Heinz's Homeroom
All Time Ultimate ladka
Ms.Harrison's Homeroom
LotJ Fall 2009 Timeline
Ireland
IXSO Events
History of Ireland
Fly-in Fly-out Plan
reizen
P221 Course Timeline of Key Events - TESTs 1- 5 and Quizzes
TckTckTck
Chapter 3: Planting Colonies in North America
chap. 3
chap. 5
chap. 4