Starting history with young children

It can be difficult for young children to be able to relate to the past (especially if it's way back), therefore start with themselves. Dig out some photos of them now, then when they were babies. Dig out photos of yourself, their dad (whoever else lives in the house with you - you could include pets). Make sure they are recent ones, then choose ones of you at your wedding, in your teens, school photos etc, then ones of your parents, their parents etc.
Ask questions about the clothes, the hairstyles etc - are they different from what people wear today?
If you have pets - were they smaller? How did they look - cuter perhaps?
Looking at photos of yourself - have you changed from when you were in school? Does your face look the same?
With your child/ren - do they have a favourite toy, if not what did their favourite toy used to be - all of these things are teaching your young ones about the past! Even questions like - what did we have for dinner yesterday? Where did we go last week? Are teaching history.