Despite their complicated mechanical nature, printing presses arrived in the New World within 50 years of Columbus' discovery. The Spanish were the first to transport printing presses across the seas and because many conquistadors were illiterate, the machines soon became the tools of the droves of Spanish monks arriving in the Americas. By the 18th century, printing presses had begun to arrive in North America as well. Benjamin Harris was one of the earliest publishers to set up shop in the North, creating a series of textbooks that would become the standard of American education. Later publishers would make their fortunes by reprinting the literary works of their home countries. Authors of the New World would have to wait until the 19th century before their work was recognized as having any merit.