Which happened earlier: Bitcoin launched or Louvre Museum opens?

Question 1

Which happened earlier?

A Bitcoin launched

B Louvre Museum opens ✓ Earlier

Louvre Museum opens (10 August 1793) came before Bitcoin launched (3 January 2009)

Question 2

Which happened earlier?

A Ford Mustang introduced ✓ Earlier

B First CT scan performed

Ford Mustang introduced (17 April 1964) came before First CT scan performed (1 October 1971)

Question 3

Which happened earlier?

A First MRI scan performed

B Woodstock begins ✓ Earlier

Woodstock begins (15 August 1969) came before First MRI scan performed (3 July 1977)

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