Centuries: 1st century - 2nd century - 3rd century
Decades: 120s 130s 140s 150s 160s - 170s - 180s 190s 200s 210s 220s
Years: 168 169 170 171 172 - 173 - 174 175 176 177 178
Events:
Births:
Deaths:
... Nobel Peace Prize April 16 - Fifi D'Orsay, actress (+ 1983) April 22 - Robert Oppenheimer, physicist (+ 1967) May 6 - Harry Martinson, swedish author, winner of ...