A hundred years ago

Sometimes I sit and wonder about stuff I dont know like what the heck the earth was like a hundred years ago. Did cavemen ride on dinosaurs? Did flowers even grow?  Well we can guess, but that was back a hundred years ago. I wish they built a time machine and they picked me to go to check out what the scene was like a hundred years ago. Did giant spiders rule the earth? Were deserts filled with snow? I wonder what the story was a hundred years ago.