The 6abc Dunkin’ Thanksgiving Day Parade is an annual Thanksgiving Day parade held in Philadelphia, Pennsylvania, and is presently sponsored and aired by ABC-owned-and-operated television station WPVI-TV, through a co-sponsorship agreement with restaurant chain Dunkin’.

 It is currently the oldest Thanksgiving parade in the United States (having been held through the Great Depression & World War II) and was formerly known as the 6abc Dunkin’ Donuts Thanksgiving Day Parade, 6abc IKEA Thanksgiving Day Parade, 6abc Boscov’s Thanksgiving Day Parade, Channel 6 Mellon PSFS Thanksgiving Day Parade, Channel 6 MasterCard Thanksgiving Day Parade and formerly the Gimbels Thanksgiving Day Parade until Gimbels department store closed operations in 1986.

When it first started in 1920, the Philadelphia parade called itself as the oldest Thanksgiving Day parade in the country. Like other parades of its type, it features balloons, floats, high school marching bands, and celebrities. The Gimbels department store sponsored the first Thanksgiving Day parade held in 1920 as the Gimbels Thanksgiving Day Parade; it continued on despite World War II.

 Ellis Gimbel, one of the founders of Gimbels Department Stores, wanted his toy land to be the destination of holiday shoppers everywhere. He had more than 50 store employees dressed in costume and sent to walk in their first Thanksgiving Day parade. The parade featured floats and marchers paraded down Market Street, with the finale consisting of Santa Claus arriving at the eighth-floor toy department at Gimbels by climbing the ladder of a Philadelphia Fire Department ladder truck.

Gimbels emulated other holiday parades already in existence. The Santa Claus Parade in Peoria, IL is held on the day after Thanksgiving and is the oldest, continuously-held holiday parade in the country since 1887, under the sponsorship of Frederick Block and the Schipper & Block (later Block & Kuhl) Department Store. Block’s example led to the founding of similar parades in other cities. The parade tradition continues today.

According to; Source of photos: internet