Which happened earlier: First ascent of K2 or Encyclopaedia Britannica first published?

Question 1

Which happened earlier?

A First ascent of K2

B Encyclopaedia Britannica first published ✓ Earlier

Encyclopaedia Britannica first published (10 December 1768) came before First ascent of K2 (31 July 1954)

Question 2

Which happened earlier?

A Radio Luxembourg begins regular broadcasting ✓ Earlier

B Grand Coulee Dam completed

Radio Luxembourg begins regular broadcasting (15 March 1933) came before Grand Coulee Dam completed (1 June 1942)

Question 3

Which happened earlier?

A Hatton Garden burglary discovered

B Burj Khalifa opens ✓ Earlier

Burj Khalifa opens (4 January 2010) came before Hatton Garden burglary discovered (7 April 2015)

Earlier #214