The first transatlantic radio broadcast took place in the 1920s, specifically on December 12, 1901, when Guglielmo Marconi, an Italian inventor and electrical engineer, successfully transmitted a radio signal across the Atlantic Ocean from Poldhu in Cornwall, England to St. John’s, Newfoundland in Canada.

A pie chart is a type of graph representing data in a circular form, with each slice of the circle representing a fraction or proportionate part of the whole.