•Start date: Courses should start on weekdays (preferably Tuesday, Wednesday, or Thursday) and not on major U.S. holidays, for best access to edX staff. NOTE: If you are unable to give an exact date, please identify in which quarter the course will be offered (e.g. Q1 2015)
•End date: The end date is the last day the course is active (i.e. the day a student can earn credit on any assignment)