In time, the apprenticeship program was not considered sufficient to produce lawyers fully capable of serving their clients' needs. The apprenticeship programs often employed the trainee with menial tasks, and while they were well trained in the day-to-day operations of a law office, they were generally unprepared practitioners or legal reasoners. The establishment of formal faculties of law in U.S. universities did not occur until the latter part of the 18th century. With the beginning of the American Revolution, the supply of lawyers from Britain ended. The first law degree granted by a U.S. university was a Bachelor of Law in 1793 by the College of William and Mary, which was abbreviated L.B.; Harvard was the first university to use the LL.B. abbreviation in the United States.