Question 1
Which happened earlier?
A
Telephone patented (US)
B
First Morse code message sent
✓ Earlier
First Morse code message sent (24 May 1844)
came before
Telephone patented (US) (7 March 1876)
Question 2
Which happened earlier?
A
Bletchley Park breaks Enigma (key breakthrough year)
✓ Earlier
B
First computer bug recorded
Bletchley Park breaks Enigma (key breakthrough year) (1 January 1941)
came before
First computer bug recorded (9 September 1947)
Question 3
Which happened earlier?
A
"SOS" released by ABBA
✓ Earlier
B
"Message in a bottle" released by The Police
"SOS" released by ABBA (3 June 1975)
came before
"Message in a bottle" released by The Police (7 September 1979)