History, like all things, is limited in terms of interesting material and finding more and more interesting topics will become harder.
There are lots of interesting in the world to learn about like gobekli tepe, the carved caves of Malta, Peleolithic and Neolithic periods. The disappearance of ancient cultures. How animals come and go like the Mammoth, Mastadon, Wooly Rhino. Neanderthals and the first modern humans. People that still live with us who have no made contact with other humans and continue to live as their ancestors have during the ice age. Napoleonic warfare, the crusades, wars ect. The first automaton, art, and sculptures.
