Question 1
Which happened earlier?
A
First official Arbor day (UK)
B
First Earth Day
✓ Earlier
First Earth Day (22 April 1970)
came before
First official Arbor day (UK) (6 February 2020)
Question 2
Which happened earlier?
A
Battle of the Somme begins (WWI)
B
Gallipoli landings (WWI)
✓ Earlier
Gallipoli landings (WWI) (25 April 1915)
came before
Battle of the Somme begins (WWI) (1 July 1916)
Question 3
Which happened earlier?
A
Central Park opens (New York)
✓ Earlier
B
First London Underground line opens
Central Park opens (New York) (21 July 1853)
came before
First London Underground line opens (10 January 1863)