Kwanzaa may not be thought of as a harvest ritual, but it is based on many of the harvest rituals of Africa. It was established in 1966 by social activist Dr. Maulana "Ron" Karenga, during the height of the civil rights movement in the United States [source: marshalleducation.org]. Even the name makes reference to the harvest -- Kwanzaa is Swahili for "first fruits." Kwanzaa begins on Dec. 26 and lasts for seven days. There are seven principles that are celebrated every year, each focusing on building and strengthening the African-American community. Each day, a different principal is recognized and honored through various customs and rituals that reflect the African heritage.