added by KaterinoulaLove
Source: http://fuckyeahbigbangtheory.tumblr.com
'The Earth began to cool,The autotrophs began to drool,Neanderthals developed tools,We built a 墙 (we built the pyramids),Math, science, history, unravelling the mysteries,That all started with the big bang!'
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标志, 海报, 文字, 黑板, and 文本.