This document lists various "firsts" in history related to leadership positions, exploration, scientific achievements, and gender barriers being broken. It notes Mao Zedong as the first Chairman of China, George Washington as the first President of the USA, Neil Armstrong as the first person to walk on the moon, and highlights several other individuals as the first person to do specific things or reach certain places, as well as some "firsts" related to women leaders and gender integration of roles.