1760 – Death of Count Nicolaus Ludwig von Zinzendorf in Herrnhut. He had founded the Moravian Brethren and was a pioneer in ecumenism and Protestant mission work.
http://www.christianhistoryinstitute.org/today/5/9
A major figure of Protestantism, Nicolaus Ludwig von Zinzendorf is commemorated as a hymnwriter and a renewer of the church by the Evangelical Lutheran Church in America on their Calendar of Saints and on the liturgical calendar of the Episcopal Church (USA) on 10 May.