was widely read and became influential in the development of the modern interpretation of the Italian Renaissance. However, Buckhardt has been accused of setting forth a linear Whiggish view of history in seeing the Renaissance as the origin of the modern world. More recently, some historians have been much less keen to define the Renaissance as a historical age, or even as a coherent cultural movement. The historian Randolph Starn, of the University of California Berkeley, stated in 1998: Debates about progress There is debate about the extent to which the Renaissance improved on the culture of the Middle Ages. Both Michelet and Burckhardt were keen to describe the progress made in the Renaissance towards the modern age. Burckhardt likened the change to a veil being removed from man's eyes, allowing him to see clearly. On the other hand, many historians now point out that most of the negative social factors popularly associated with the medieval period—poverty, warfare, religious and political persecution, for example—seem to have worsened in this era, which saw the rise of Machiavellian politics, the Wars of Religion, the corrupt Borgia Popes, and the intensified witch hunts of the 16th century. Many people who lived during the Renaissance did not view it as the "golden age" imagined by certain 19th-century authors, but were concerned by these social maladies. Significantly, though, the artists, writers, and patrons involved in the cultural movements in question believed they were living in a new era that was a clean break from the Middle Ages. Some Marxist historians prefer to describe the Renaissance in material terms, holding the view that the changes in art, literature, and philosophy were part of a general economic trend from feudalism towards capitalism, resulting in a bourgeois class with leisure time to devote to the arts. Johan Huizinga (1872–1945) acknowledged the existence of the Renaissance but questioned whether it was a positive change. In his book The Autumn of the Middle Ages, he argued that the Renaissance was a period of decline from the High Middle Ages, destroying much that was important. The Latin language, for instance, had evolved greatly from the classical period and was still a living language used in the church and elsewhere. The Renaissance obsession with classical purity halted its further evolution and saw Latin revert to its classical form. Robert S. Lopez has contended that it was a period of deep economic recession.