Union College (UC) (Tamil: ஐக்கிய கல்லூரி) is a mixed public provincial school in Tellippalai, Sri Lanka. Founded in 1816 by American missionaries, it is one of Sri Lanka's oldest schools. Rev. Samuel Newell, an American missionary, arrived in Jaffna peninsula on 7 September 1813 and occupied the Dutch Hall in Tellippalai, which at that time consisted of dilapidated and snake-infested structures dating back to the 16th century Portuguese Ceylon. In the coming years Newell was joined by other American missionaries including Rev. Daniel Poor and Rev. Edward Warren. In 1816 the American missionaries founded the American Ceylon Mission in Jaffna. The ACM established missions in other parts of the Jaffna peninsula including one in Vaddukoddai. The ACM established numerous schools on the peninsula. The first school established by the ACM was the Common Free School which was founded by Rev. Poor and Rev. Warren on 9 December 1816 in Dutch Hall, Tellippalai. It was the first English language school in northern Ceylon. On 20 July 1818 the school was converted into the Family Boarding School with just 6 students.