Question 1
Which happened earlier?
A
First International Workers’ Day demonstrations held globally
✓ Earlier
B
Empire State Building opens
First International Workers’ Day demonstrations held globally (1 May 1890)
came before
Empire State Building opens (1 May 1931)
Question 2
Which happened earlier?
A
First human in space (Yuri Gagarin)
B
TIROS-1, first weather satellite launched
✓ Earlier
TIROS-1, first weather satellite launched (1 April 1960)
came before
First human in space (Yuri Gagarin) (12 April 1961)
Question 3
Which happened earlier?
A
Bay of Pigs invasion in Cuba
B
U-2 spy plane shot down over USSR (Gary Powers)
✓ Earlier
U-2 spy plane shot down over USSR (Gary Powers) (1 May 1960)
came before
Bay of Pigs invasion in Cuba (17 April 1961)