and used gongbi brush style ( 1494 - 1552 ) Mikolaj Rej , Polish writer ( 1505 - 1569 ). Ahmad ibn Ibrihim al-Ghazi , Somali Imam and general ( 1507 - 1543 ). John Calvin , theologian, and reformer. Founder of Calvinism ( 1509 - 1564 ). John Calvin .