The Acts of the Apostles (Koine Greek: Πράξεις Ἀποστόλων, Práxeis Apostólōn and Latin: Actūs Apostolōrum) is the fifth book of the New Testament. It recounts the founding of the Christian Church and the spread of its message across the Roman Empire.
Acts and the Gospel of Luke form a two-volume work known as Luke–Acts by the same author. Tradition identifies the writer as Luke the Evangelist, a doctor who travelled with Paul the Apostle, though the text is anonymous, not naming its author. Critical opinion remains divided about whether Luke the physician wrote it. Many scholars still regard the author of Luke–Acts as a companion of Paul, although they note tensions with the Pauline epistles. Most scholars treat Acts as historiography, though focus is more on the author's aims than on settling questions of strict historicity. Scholars usually date the book to 80–90 AD.