Spanish omelette wheat tortilla of Mexico and neighbouring countries, which is a thin flatbread. In most of Hispanic America, where both the flatbread and potato omelette are eaten, the omelette is called "tortilla española" to distinguish it from the maize tortilla of the region. Because the potato is called "papa" in much of Hispanic America (instead of the term "patata" used in Spain), this dish can sometimes be referred to as "tortilla de papas" in that region as well. The Spanish tortilla ("tortilla de patatas" in Spain) is widely eaten in Spain and some Spanish-speaking countries. While there are numerous regional variations,
Vegetable ivory use of vegetable ivory, attested from the 1880s, was the manufacture of buttons. Rochester, New York was a center of manufacturing where the buttons were "subjected to a treatment which is secret among the Rochester manufacturers", presumably improving their "beauty and wearing qualities". Before plastic became common in button production, about 20% of all buttons produced in the US were made of vegetable ivory. Vegetable ivory has been used extensively to make dice, knife handles, and chess pieces. It is a very hard and dense material. Similar to stone, it is too hard to carve with a knife but instead