Dipropylene glycol methyl ether (DPGME) is one of the most commonly used propylene glycol ethers in industry and is discussed in a recently published NEG/NIOSH document. DPGME is a collective term describing a mixture of structural isomers.
The Incas were a civilization in South America formed by ethnic Quechua people also known as Amerindians. In 1400AD they were a small highland tribe, one hundred years later in the early 16th century the Incas rose to conquer and control the largest empire ever seen in the Americas forming the great Inca Empire.
The Inca Empire (Quechua: Tawantinsuyu, The Four Regions), also known as the Incan Empire, was the largest empire in pre-Columbian America. The administrative, political, and military center of the empire was located in Cusco in modern-day Peru.he Inca referred to their empire as Tawantinsuyu, the four suyo . In Quechua, tawa is four and-ntin is a suffix naming a group, so that a tawantin is a quartet, a group of four things taken together. The empire was divided into four suyo (regions or provinces), whose corners met at the capital, Cusco (Qosqo).