Other mistake: When the 3 go to Ivy Town, "Disco Inferno" is playing. However, this is 1975 and the song was recorded and released in 1976.
Legends of Tomorrow (2016)
1 other mistake in season 1 - chronological order
Factual error: The Legends are stranded in England and wait for a bus to London. However, the bus that pulls up is left-hand drive, when it should be a right-hand drive one.
Vandal Savage: Who are you to stand up against me, Vandal Savage, destroyer of empires.
Leonard Snart: Leonard Snart, robber of ATMs.
Trivia: Nate's dad, played by Thomas F. Wilson, says "let's make like a tree and leave", to which Nate replies "I'm not sure that's how it goes." Thomas F. Wilson famously played Biff in the Back to the Future films, who frequently got that saying wrong.
Question: Why don't the heroes use at least 2018-era protective gear to keep from getting shot or stabbed?