At least 30 of these viruses can be sexually transmitted. HPV transmission occurs easily among sexual partners. This is evidenced by the fact that at least 50 percent of sexually active men and women acquire a genital HPV infection at some point in their lives.
A farm worker corrals cranberries in a bog during a harvest. Every schoolchild learns that the Pilgrims couldn't have survived life in the New World without the help of the Indians. The tribes taught them which crops to plant. They introduced them to corn and other nutritional mainstays. One of these, the American cranberry, is still part of the classic Thanksgiving feast.
When Europeans like Columbus made contact with people living in North and South America, corn was a major part of the diet of most native people. When Columbus discovered America, he also discovered corn. But up to this time, people living in Europe did not know about corn. The first Thanksgiving was held in 1621.