. ▁▁ 1 9 3 3 ▁- ▁ ▁built . ▁▁ 1 9 3 5 ▁ ▁F ana ▁G ymnas ▁( school ) ▁active . ▁ ▁As b j ør n ▁St ens aker ▁becomes ▁mayor . ▁▁ 1 9 3 6 ▁- ▁Norwegian ▁School ▁of ▁Econom ics ▁established . ▁▁ 1 9 4 4 ▁▁ 2 0 ▁April : ▁Har bour ▁explos ion ▁in ▁Ber gen ▁ 1 9 4 4 . ▁▁ 4 ▁October : ▁ ▁near ▁Ber gen . ▁ ▁Sub marine ▁" Operation ▁Gu id ance " ▁occurs ▁in ▁har bour . ▁▁ 1 9 4 5 ▁- ▁N ils ▁Hand al ▁becomes ▁mayor . ▁▁ 1 9 4 6 ▁ ▁University ▁of ▁Ber gen ▁established . ▁▁ ▁( cin ema ) ▁built . ▁▁ 1 9 4 9 ▁- ▁ ▁established . ▁▁ 1 9 5 0 ▁- ▁Population : ▁ 1 6 2 , 3 8 1 . ▁▁ 1 9 5 5 ▁- ▁Med ieval ▁Bry gg en ▁ins cri ptions ▁discovered . ▁▁ 1 9 6 7 ▁- ▁Sister ▁city ▁relationship ▁established ▁with ▁Seattle , ▁USA . ▁▁ 1 9 7 0 ▁▁ 2 9 ▁November : ▁Body ▁of ▁Is dal ▁Woman ▁found . ▁ ▁Population : ▁ 2 0 9 , 0 6 6 . ▁▁ 1 9 7 2 ▁- ▁Ar na , ▁Å s ane , ▁F ana , ▁and ▁Lak se v å g ▁become ▁part ▁of ▁city . ▁▁ 1 9 7 3 ▁▁ ▁( art ▁school ) ▁opens .