Martin Luther (1483-1546), the hero of the Reformation, was born in the village of Eisleben. He entered the University at Erfurt in 1501 and graduated with honors. In 1505 he entered an Augustinian monastery at Erfurt and was consecrated to the priesthood in 1507.
David Livingstone (1813-1873) was a renowned missionary and explorer. He grew up in Glasgow, Scotland in a poor family. He studied on his own and was able to enter the University of Glasgow in 1830 where he earned degrees in theology and medicine.
John Knox (c. 1514-1572) was born in Haddington, Scotland and educated at the University of Glasgow. He was originally a Roman Catholic priest. In 1543 he converted to Protestantism due, primarily, to the preaching of the reformer George Wishart.
Justin Martyr (c. 100-165) was born in Samaria, Justin was well educated and grew up in a family of means who allowed him to travel extensively. He earnestly sought the truth in various religions and philosophies but didn’t find peace until an elderly believer led him to Christ.