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Molcajete used to grind spices Molcajete as a food container. Molcajetes are used to crush and grind spices, and to prepare salsas and guacamole.The rough surface of the basalt stone creates a superb grinding surface that maintains itself over time as tiny bubbles in the basalt are ground down, replenishing the textured surface.
Tridilosa: invented by civil engineer Heberto Castillo. Anti-graffiti coating (Deletum 3000): developed in the early 2000s at UNAM’s Applied Physics and Advanced Technology Centre in Querétaro Mexico. Earthquake Resistant Foundations: invented by engineer Manuel González Flores in 1945.
The timeline of wars has been split up in the following periods: List of wars: before 1000; List of wars: 1000–1499; List of wars: 1500–1799; List of wars: 1800–1899; List of wars: 1900–1944; List of wars: 1945–1989; List of wars: 1990–2002; List of wars: 2003–present
For a timeline of events from 1801 to 1900, see Timeline of the 19th century; For a timeline of events from 1901 to 1945, see Timeline of the 20th century. For 1914–1918, see Timeline of World War I; For 1939–1945 see Timeline of World War II
A molcajete and tejolote, the traditional mortar and pestle of Mexico. The importance of the chile goes back to the Mesoamerican period, where it was considered to be as much of a staple as corn and beans. In the 16th century, Bartolomé de las Casas wrote that, without chiles, the indigenous people did not think they were eating.
Old Japanese weapons and other military paraphernalia, c. 1892–95 A Gilbertese shark-toothed weapon (late 19th century). Major innovations in the history of weapons have included the adoption of different materials – from stone and wood to different metals, and modern synthetic materials such as plastics – and the developments of different weapon styles either to fit the terrain or to ...
The use of metates is estimated to have begun in the Upper Cenolithic period in Mexico, sometime between c. 5000 BC – c. 3000 BC, [6] and in the Middle Archaic period in the American Southwest, c. 3500 BC. [5]
This timeline of nuclear weapons ... 1914 – H.G. Wells writes The World Set Free, a science fiction novel postulating a world war in 1956 pitting ... To date, 189 ...