There is no scholarly consensus on the date of composition of the latest New Testament texts. Conservative scholars John A. T. Robinson, Dan Wallace, and William F. Albright dated all the books of the New Testament before 70 AD. Many other scholars, such as Bart D. Ehrman and Stephen L. Harris, date some New Testament texts much later than this; Richard Pervo dated Luke–Acts to c. AD 115, and David Trobisch places Acts in the mid-to-late second century, contemporaneous with the publication of the first New Testament canon.