[2] The original cocktail of vodka with seasoned tomato and clam juice made its debut at the Polonaise nightclub in Manhattan in November 1953.

[7] In October 1968, Seagram president Victor Fischel and Mott's Clamato marketer Ray Anrig claimed to have invented the seasoned tomato/clam/vodka cocktail, the "Clamdigger" earlier in 1968, in Manhattan.

[8] Seagram, headquartered 2 blocks from the Polonaise nightclub, filed a trademark application on the name "Clamdigger" claiming first use on May 31, 1968.

[9] From late 1968 to the end of 1969, Seagram and Mott's ran a major advertising promotion of the "Clam Digger" cocktail recipe in national magazines.

[13] He mixed vodka with clam and tomato juice, Worcestershire sauce, and other spices,[14] creating a drink similar to a Bloody Mary, but with a uniquely spicy flavour.

One regular customer, an Englishman, who often ordered the drink said one day, "Walter, that's a damn good bloody Caesar".

[16] Coinciding with its 40th anniversary, a petition was launched in 2009 in the hopes of having the Caesar named the nation's official mixed drink.

[18] In Calgary, Mayor Dave Bronconnier celebrated the drink's anniversary by declaring May 13, 2009 Caesar Day in the city.

[19] The Mott's company was independently developing Clamato, a mixture of clam and tomato juices, at the same time the Caesar was invented.

[24] While Mott's Clamato continues to be synonymous with the cocktail, other producers have begun offering alternative Caesar mixes.

[28] Mott's holds an annual "Best Caesar in Town" competition as part of the Prince Edward Island International Shellfish Festival.