Ogun Saina ati Japan Keji odun 1937 tan titi de Ogun Agbaye 2k, to wa sopin ni 1945 leyin ijubombu atomu si Hiroshima ati Nagasaki.. 
Posiidì social Scientists use Methods resewo those of the natural Sciences as tools for understanding society, and so define Science in its striìyàlẹ́nu modern sense.. 