The traditional portrait of the American Santa Claus was created by artist Haddon Sundblom as part of an advertising campaign for what product?

The traditional portrait of the American Santa Claus was created by artist Haddon Sundblom as part of an advertising campaign for Coca-Cola. Beginning in the 1930s, Sundblom's illustrations depicted a jolly, plump Santa enjoying a Coke, which helped solidify the modern image of Santa in popular culture. These iconic images contributed significantly to the festive spirit associated with Christmas and the Coca-Cola brand.