Seventy years ago this week, Allied forces were preparing for the D-Day Landings in Normandy that would eventually turn the tide of World War 2 . This year we are also commemorating the start of the First World War in 1914.

Many schools are covering one or both of these events in their lessons and there are some good online resources to help teach them. One site I’ve written about before is called HistoryPin and it’s well worth a look.

HistoryPin is a global community collaborating around history. It’s main focus is to superimpose historical pictures over a Google Map so you can compare the image to how things look today.

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There are a few World War collections that are worth exploring with a class. There’s a First World War Collection, a   VE Day Collection or you can just browse the map of Normandy.

Another very useful resource is the Photography Then and Now photo gallery from the Guardian newspaper. There’s some great photographs here. (Thanks to my good friend Laura O’Halloran for the tip!)

You could also take a look at some of the excellent Normandy Landing resources on the Google Cultural Institute.

If you have other great World War 1 and 2 resources, please share them in the comments below!