Jacobus Arminius (1559-1609) composed 61 public disputations during his brief tenure as professor of theology at Leiden University, 36 of which have never before been collected and published, and have been neglected by scholars for four centuries. This critical edition supplements the works of Arminius by presenting these texts in the original Latin, complete with notes and summaries in English. The texts are preceded by a helpful introduction to the genre of theological disputations. In addition, the question of disputation authorship is treated exhaustively for the first time, demonstrating Arminius's primary authorship of these documents.