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Ancient and Modern History Quiz for 13 July 2020

A new history quiz is available each week. Try our daily general knowledge quiz or work through our archive of daily and themed quizzes.

Question 1: On 20 April 2020 the oil market in the USA saw what historic occurrence?

A
Oil's selling price was negative
B
US oil producers agreed to cease production totally for a fortnight
C
The US joined OPEC
D
A power blackout stopped trading for 24 hours