Hinduism was not founded by an individual. It was developed over time.
Another important figure was Gandhi
Quote from Gandhi: "Nobody can hurt me without my permission."
Important Holidays and Dates
"In the Hindu faith, there are more holidays than there are days in the year, with adherents of this faith celebrating a wide variety of things with numerous festivals and commemorative events. Major Hindu holidays also vary from region to region, as the faith is practiced slightly differently in certain areas. The two most notable Hindu holidays are probably Holi and Diwali, celebrated by most Hindus all over the world." (http://www.wisegeek.com/what-are-the-major-hindu-holidays.htm)