Creedence Clearwater Revival was active in the late 1960s and early 1970s.
February 30 occurs on some calendars but not the Gregorian calendar , where the month of February contains only 28 days , or 29 days in a leap year .. Gregorian calendar. Gregorian calendar. February. February. leap year. leap year. February 30 is usually used as a sarcastic date for referring to something that will never happen or will never be done .. February. February