Today, being a Sunday, would move the commemoration for Arminius, since the Lord's Day trumps all other celebrations. Nevertheless, October 19 is the day set aside for him in For All the Saints: A Calendar of Commemorations (Second Edition). I had the privilege of writing the entry for Arminius (as well as James Varick & Phineas Bresee). Below is my article as it appears in the book:
Jacob (or James) Arminius, Dutch pastor and theologian, was born the son of Harmon and Elborch Jacobsz in Oudewater, Holland in 1559. he received his early education at Utrecht. In 1575, Arminius' mother and siblings were killed during the Spanish massacre of Oudewater. Through the generosity of friends, Arminius was able to study at the University of Marburg and, from 1576 to 1581, at the University of Leyden. Through the support of the Merchants' Guild of Amsterdam, Arminius went on to Geneva where he studied under Theodore Beza from 1582 to 1586, including a year at Basel. Returning to the Netherlands in 1587, he began a fifteen-year pastorate in Amsterdam. There he was ordained in 1588. In 1603 he received his doctor's degree from Leyden and became the university's professor of theology.
When the United Netherlands (Dutch Republic) became independent, Calvinism became the official state religion. However, Arminius could not accept the popular predestination position. Instead, he attempted to modify Calvinism so that God could not be viewed as the author of sin and so that human choice might be safeguarded. Arminius, facing much opposition, was reluctant to express anti-Calvinistic views, but, as time went on, he was accused for what he refused to say and write.
Arminius urged the government officials to call a national synod so that he might openly present his positions. However, in 1609 he became ill and died, nine years before the synod was called. The year following his death, Arminius' followers presented a Remonstrance over against the five points of Calvinism. They "held that Christ died for all men [sic], that salvation is by faith alone, that those who believe are saved, that those who reject God's grace are lost, and that God does not elect particular individuals for either outcome.
Arminius taught that Christ is the object of God's decree. The predestination of individuals is conditional, depending upon teir acceptance or rejection of Christ. In other words, God, according to divine foreknowledge, has predetermined to save all who place their faith in Christ and continue in that faith.
Although condemned by those of a Calvinist persuasion at the Synod of Dort in 1618, Arminian teaching has, nevertheless, gained permanent standing in john Wesley and the Wesley[an]/Methodist tradition.
The following sources were referenced in the article in the book:
Carl Bangs, Arminius: A Study in the Dutch Reformation.
Williston Walter, et. al. A History of the Christian Church 4th ed.
Elgin S. Moyer, Who Was Who in Church History.
Kenneth Scott LaTourette, A History of Christianity, vol. 2. "Reformation to the Present."