Lindy hop is part of a lineage of Black American dance forms (for example Charleston, Balboa, Blues dance, Tap, Cake walk) originating from African dances. It is a social dance that was shaped in the late 1920s and early 1930s in Harlem, New York. At that time, Lindy hop was danced every night in large ballrooms to live bands playing swing music led by giants such as Duke Ellington, Count Basie, and Chick Webb. Just like the music it is danced to, Lindy hop values improvisation, innovation, self expression, and rhythm.
Here you can see “20 Swing Era Lindy Every Beginner Dancer Should Know (Or At Least See Dance)” presented by Bobby White.
Here you can see a modern day example of Lindy hop and other dance styles in LaTasha Barnes’ “The Jazz Contiuum”. Read the caption on YouTube for a full description.