125 years of filming events

Queen Victoria’s Diamond Jubilee procession was held on June 22nd 1897, filmed by forty cameras from different companies (one example thanks to the BFI) and shown all around the world within days. An eighth of a millennium later the recent Platinum Jubilee was beamed in HD pretty much live, but this was the first mass media event a year after the first films were shown to the public.

(So if you want to do the plot where somebody spots a time traveller in an old movie, this is pretty much the first multi-camera event to do it.)