Memory Game Inventors and inventionsOnline version Review activity by Gina Galera Mesopotamian people 4200-4000 bc Edward Jenner 1796 IBM 1992 Charles Hull 1983 Nicholas Jacques-Conte 1795 Humans Around 100 000 years ago Humans in the Neolithic era Mesopotamia 3 bc Mayans 4 ad Alexander Fleming 1928 Nikola Tesla, Thomas Alva Edison