7:
But the year is 2010, so it's 20th, just like when you were little it was the 1970s. The 19th.
Mum:
No, remember that the 1st century started at zero, so when you hit 2000, it was the start of 21st century. So, we say something happened in the 1900s, but that's the 20th century. You know some history dates. When did the Battle of Hastings happen?
7:
That was in 1066!
Mum:
So, the 11th century. But I wonder what they called it back then? The 10 hundreds? or the 1000s?
