The Homeric question is essentially the question of the identity of the poet(s) of the Homeric epics, and the nature of the relationship between "Homer" and the epics. In the 19th century it came to be the fulcrum between two opposed schools of thought, the "Analysts" and the "Unitarians". The issue came about in the context of 18th-century interest in popular lays and folktale, and the growing recognition that the Homeric epics must have been transmitted orally before being written down, possibly much later than "Homer" himself. The Italian philosopher Vico argued that the epics were the products not of an individual genius poet but rather the cultural products of an entire people; and Wood’s 1769 "Essay on the Original Genius and Writings of Homer" argued emphatically that Homer had been illiterate and the epics had been transmitted orally. (Less fortunately, Wood drew parallels between Homer and the poetry of the supposed Scottish oral poet Ossian, published by James Macpherson in 1765; Ossian turned out later to have been wholly invented by Macpherson.)