The American Ceylon Mission (ACM) to Jaffna, Sri Lanka started with the arrival in 1813 of missionaries sponsored by the American Board of Commissioners for Foreign Missions (ABCFM). Although they had originally planned to work in Galle, the British colonial office in Ceylon restricted the Americans to out-of-the-way Jaffna due to the security concerns of the British who were warring with France at the time. The critical period of the impact of the missionaries was from the 1820s to early 20th century. During this time, they engaged in original translations from English to Tamil, printing, and publishing, establishing primary, secondary and tertiary educational institutions and providing health care for residents of the Jaffna Peninsula. These activities resulted in many social changes amo