Aug. 6 1945
% complete
http://www.arkibongbayan.org/2011/2011-08Aug05-hiroshima/pix/bomb/45hiroshima%20a-bomb.jpg
Aug. 9 1945
http://www.atomcentral.com/images/hiroshima-nagasaki/Nagasaki.jpg
1970
http://www.anglonautes.com/hist_us_20_cold_war/hist_us_20_cold_war_cov_time_h_bomb_1954.jpg
1967
http://www.times24.in/wp-content/uploads/2013/04/01604.jpg
http://www.phantomreport.com/wp-content/uploads/2012/05/russian-missile.jpg
11 July 1957
http://www.spaceflightnow.com/atlas/av010/060119launch/07.jpg
July 28 1958
http://upload.wikimedia.org/wikipedia/commons/e/e5/NASA_logo.svg
1969
http://upload.wikimedia.org/wikipedia/commons/9/9d/As11-40-5886.jpg
1950
http://upload.wikimedia.org/wikipedia/commons/0/04/Sergey_Korolyov_140-190_for_collage.jpg
1957
http://upload.wikimedia.org/wikipedia/commons/b/be/Sputnik_asm.jpg