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On this day

September 1

Cities around the world keep their histories on dates. Here is what happened on September 1 across the 1 editorial events Pyflo has so far catalogued for this date.

1 event 1 century 1 country
1854

(1854) and subsequent treaties that ended Japan's

Yokohama Japan

Yokohama was a tiny fishing village of 100 households until 1859, when it became one of five ports forcibly opened to foreign trade by the Convention of Kanagawa (1854) and subsequent treaties that ended Japan's 300-year Sakoku (closed-country) policy — the Tokugawa Shogunate…

Read the full story → Open in Atlas Time Machine →

Drawn from the Pyflo Atlas — an interactive timeline of 1,601 editorial events reaching back to 2100 BCE, each pin a deep link into a city's full story. Watch history play out on the map →