The National Italian American Heritage and Culture Month of October was designated by United States Presidential Proclamation. Coinciding with the festivities surrounding Columbus Day, the proclamation is in recognition of the many achievements, contributions, and successes of Americans of Italian descent as well as Italians in America.
Over 5.4 million Italians immigrated to the United States between 1820 and 1992. Today there are more than 26 million people of Italian heritage living in the United States. The country was even named after an Italian, the explorer and geographer Amerigo Vespucci.
Fonte: L'italo-Americano