Big Bang By fhgjhjk Period: Feb 20, 2017 to Feb 22, 2017 Big Bang http://www.uni.edu/morgans/astro/course/Notes/section3/bigbang.html Period: Feb 22, 2017 to Feb 22, 2017 The first stars light up https://www.bighistoryproject.com/en/thresholds/2 Period: Feb 22, 2017 to Feb 22, 2017 The formation of our Sun http://www.space.com/19321-sun-formation.html Period: Feb 22, 2017 to Feb 22, 2017 Early humans appear http://www.nytimes.com/2002/02/26/science/when-humans-became-human.html