Yes discoveries count as history because it happened in the past, which is called history. The reason why it should also be known as history is it happened in the world.

We are going to have coins go on the tissue while it is wet. In order to make it stronger you can use this to help you make it stronger. We will measure our results by adding more coins till we think it is enough.

The reason why there are fossils in Antarctica is because of plate tectonics, also because of Pangea. Pangea was when all the continents were all together. Plate tectonics was a big part of the the fossils in Antarctica.