The Jericho we see in Wednesday is a fictionalized take on the real-life town of Jericho, Vermont.

Jericho’s name is taken from the ancient city of the same name which was founded around 9600 BCE and is believed to be one oldest cities in the world.

Located in the Jordan Valley, the original Jericho features in the bible as it was the first city conquered by the Israelites after crossing the Jordan River into the Promised Land.

Thanks to its presence in the bible, Jericho has inspired the naming of towns all over the world, most notably a small town in Vermont which is the town where Wednesday is supposedly set. We see several cars bearing Vermont license plates while the nearby town of Burlington also features briefly in the series.

Where the real and fictional Jerichos differ, however, is that the real town was first settled by a European family called the Browns in 1774, almost 150 years after the town in Wednesday was supposedly established by Joseph Crankstone in 1625. source