The document discusses tamales, a traditional Mexican food made of masa or dough stuffed with meats, vegetables or fruits and steamed in corn husks or banana leaves. It notes that tamales originated in Mexico and were an important part of Aztec rituals and celebrations, as well as the daily diet for many Mexicans. The diversity of tamales varies greatly by region in Mexico, with estimates of between 500 to 5,000 different types nationwide based on local ingredients and traditions.