Why Europe uses 240V at 50Hz but America uses 120V at 60Hx

Question

Why Europe uses 240V at 50Hz but America uses 120V at 60Hx

In: Technology

Answer 1

Just adding it is not only EU, but many of the countries that were EU colonies at some time use 220v.

HEre is a map:
https://myelectrical.com/notes/entryid/22/110-or-230-volts