Jean Hardouin (1646–1729)was a French scholar who lived from 1646 to 1729. He was born in Brittany but moved to Paris where he joined the Jesuit order at 16 years old. He was interested in numismatics and published works contending that several important classical works were medieval forgeries of the 13th century, produced by monks under the direction of Severus Archontius.
Two of his works on chronology were published under the titles of Chronologiae ex nummis antiquis restitutae (1696) and Prolegomena ad censuram veterum scriptorum (1729). In these volumes, Hardouin argues that works of Homer, Herodotus, Cicero, Pliny, Virgil, and Horace, among others, were all fabricated by Catholic scribes at other monasteries. He also questioned the authenticity of works of art said to be ancient, as well as inscriptions and the allegedly ancient coins of his numismatic studies. He found further chronological issues in Dante's work.
His Prolegomena was his last work, coincidentally published within the same year that he died, and in it he made arguments that the New Testament was originally composed in Latin.
The following works of Hardouin are available at Archive.org:
Prolegomena ad censuram veterum scriptorum (Introduction to the Censorship of Former Writers, 1766, in Latin) https://archive.org/details/bub_gb_Am0TAAAAQAAJ/page/n3
Chronologiae ex nummis antiquis restitutae (Chronology of Ancient Coins of Herodian, 1693, in Latin) https://archive.org/details/bub_gb_saCC6in0tygC/page/n3
Antirrheticus de nummis antiquis coloniarum et municipiorum (Cash from the Old Colonies, 1689, Latin) https://archive.org/details/bub_gb_Hti6nZ7szpsC/page/n3
Doutes proposés sur l'age du Dante (Proposed Doubts on the Age of Dante, in French, 1847 edition) https://archive.org/details/bub_gb_shtLAAAAcAAJ_2/page/n11
source and credit:
https://voat.co/v/chronology/2938399
https://voat.co/u/bb22
there doesn't seem to be anything here