Originally started on January 1, 1890, the Rose Parade is watched in person by hundreds of thousands of spectators on the parade route, and is broadcast on multiple television networks in the United States. It is seen by millions more on television worldwide in more than 100 international territories and countries.
The Rose Bowl is a college football game that was added in 1902 to help fund the cost of staging the parade. Since 2011, the parade has been sponsored by Honda. Accordingly, the company has the parade's first float, which like all floats, follows the parade's theme.
Rose Parade 2018 featured 44 floats, 20 equestrian units with approximately 400 horses, and 21 marching bands. The theme of this 129th Rose Parade was "Making a Difference" and the Grand Marshal of the parade was Gary Sinise.
Members of Pasadena's Valley Hunt Club first staged the parade in 1890. Since then the parade has been held in Pasadena every New Year's Day, except when January 1 falls on a Sunday. In that case, it is held on the subsequent Monday, January 2. This exception was instituted in 1893, as organizers did not wish to disturb horses hitched outside Sunday church services. (This event was held even during both World War years.)
According to wikipedia