The first women voted in the 1920s
They should interview other people who fought in that same war ( which would be back up witness for these two different accounts). So whoever has the most back up witnesses must be telling the truth ( also make sure the other people you interview don't know they are back up witness).
He was a typical explorer. He would explore for three main reasons mother countries explored, gold, god and glory. To find wealth in spices and precious metals, to spread his catholic religion, and to find glory in his adventures.