Question 1
Which happened earlier?
A
Euro introduced
✓ Earlier
B
Bitcoin network launches (genesis block mined)
Euro introduced (1 January 1999)
came before
Bitcoin network launches (genesis block mined) (3 January 2009)
Question 2
Which happened earlier?
A
United Kingdom decimalises currency
B
Australia decimalises currency
✓ Earlier
Australia decimalises currency (14 February 1966)
came before
United Kingdom decimalises currency (15 February 1971)
Question 3
Which happened earlier?
A
Brazil introduces real currency
✓ Earlier
B
Euro banknotes enter circulation
Brazil introduces real currency (1 July 1994)
came before
Euro banknotes enter circulation (1 January 2002)