Question 1
Which happened earlier?
A
First London Underground line opens
✓ Earlier
B
Orient Express begins service
First London Underground line opens (10 January 1863)
came before
Orient Express begins service (4 October 1883)
Question 2
Which happened earlier?
A
Concorde enters passenger service
B
First Boeing 747 commercial flight
✓ Earlier
First Boeing 747 commercial flight (22 January 1970)
came before
Concorde enters passenger service (21 January 1976)
Question 3
Which happened earlier?
A
Uber launches in San Francisco
B
Tesla Roadster first deliveries
✓ Earlier
Tesla Roadster first deliveries (1 February 2008)
came before
Uber launches in San Francisco (4 June 2010)