Fall begins Sept. 23. In the northern hemisphere, the season of fall begins with the autumnal equinox, which falls on Wednesday, Sept. 23, 2015. The equinox is defined as when day and night are the same length, approximately 12 hours each. Fall, also known as autumn, is one of four seasons during the year, occupying the space between summer and winter.
Sebastian Vizcaino was the first to make a detailed map of the California coastline and consequently was responsible for naming various sites such as the bays of San Diego andâ¦ Monterey, and Santa Catalina Island, among others.
Sebastian is a city in Indian River County, State of Florida, United States.ebastian is a principal city of the Sebastianâ Vero Beach Metropolitan Statistical Area, which includes all of Indian River County.