The United States is the most diverse and multicultural nation on earth. People of every nation have immigrated to the USA over the nearly 250 years of its existence. The main religion is based on Christianity, whether Protestant or Roman Catholic. English is considered to be the national language of the United States. Most Americans enjoy various hobbies and leisure activities. Favorite American sports include baseball, football, and basketball, just to name a few. Thanksgiving and the Fourth of July are the most celebrated national holidays in the United States. Thanksgiving focuses on the celebration of the original Pilgrims who came to the United States in the 17th Century. The Fourth of July is when the USA declared independence from England. Music and arts of all types are common throughout the United States. Food also spans the gamut based on various ethnic groups that are in the USA.