Pétrus Ky

Jean-Baptiste Petrus Trương Vĩnh Ký, known as Petrus Ký, was a Vietnamese scholar whose publications helped improve understanding between colonial Vietnam and Europe. His works helped popularize the Vietnamese alphabet, chữ Quốc ngữ, leading to its officialization in the early 20th century. He served in the French colonial regime as a linguist and also translated many literary works into modern Vietnamese.