The biggest celebration of the year is the legal holiday Kamehameha Day on June 11. The festivities begin outside lolani, the only palace in America, when members of Hawaiian societies and organisations sing and chant ancient praises for King Kamehameha the First, who established a unified kingdom of islands by 1810. Honolulu begins to fill with enormous floats, on which costumed people stand among scene from the history of Hawaii. Someone is chosen every year to sit on the main float and represent King Kamehameha the First, who was the first of five monarchs to rule Hawaii over a hundred years.