Which happened earlier: Facebook launches to the public or First YouTube video uploaded?

Question 1

Which happened earlier?

A Facebook launches to the public

B First YouTube video uploaded ✓ Earlier

First YouTube video uploaded (23 April 2005) came before Facebook launches to the public (26 September 2006)

Question 2

Which happened earlier?

A Twitter launches ✓ Earlier

B Instagram launches

Twitter launches (21 March 2006) came before Instagram launches (6 October 2010)

Question 3

Which happened earlier?

A Reddit founded ✓ Earlier

B TikTok launches internationally

Reddit founded (23 June 2005) came before TikTok launches internationally (2 August 2018)

Earlier #123