What Is the Key to Complex Human Societies? War.

TUESDAY, APRIL 20, 2010, AT 6:19 PM Tornado Kills at Least Five in Oklahoma

FRIDAY, APRIL 29, 2011, AT 3:07 PM Obama Gets Firsthand Look at a Tornado Damage

TUESDAY, APRIL 20, 2010, AT 6:19 PM Tornado Kills at Least Five in Oklahoma. Very long title. Long long long. Tornado Kills at Least Five in Oklahoma. Very long title. Long long long.

TUESDAY, APRIL 20, 2010, AT 6:19 PM Tornado Kills at Least Five in Oklahoma. Very long title. Long long long. Tornado Kills at Least Five in Oklahoma. Very long title. Long long long.

Source: http://www.slate.com/articles/video/video/2013/09/human_social_evolution_what_is_the_key_to_a_successful_society_war.html

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