So... did he take the camcorder or not?
Weird.
And yeah, umbrellas would be roughly the same; the big differences over 200 years are 8n language and social etiquette; hell, English in the 1400s was massively different from the 1600s, and same with French.
Without mass communication being available, vowels shift, consonants shift, and even old slang terms that people hate become normal words in everyday usage.
Umbrellas are pretty safe, but the fact that you don't twist your head like everybody else when walking down the street can get you beaten up...
(Not downing the manga, I just got excited about something I find neat... lol)