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Oct 1, 2003 ... Over the course of more than a thousand years, Greek and Roman artists created ... has a lower melting point than pure copper, it will stay ... Over thousands of years, diverse American Indians built empires on this land ... had occupied for more than 1,000 years. As Caddo society became more ... Mar 28, 2024 ... Created in the 1940s, these synthetic compounds are an unseen ingredient in many ... thousands of years. These “attributes also make them very ... WHO creates first system for surveillance. During the seasonal flu epidemic of 1947, small changes in the composition of influenza viruses had made existing ... May 29, 2023 ... Gold was generally used for a couple thousand years solely to create things such as jewelry and idols for worship. ... has actually led to ... The smelting process for bronze made with arsenic would have produced poisonous fumes. People may have preferred tin-based bronze or found that it was easier to ... Mar 12, 2012 ... But in the evolutionary timeline, people have only been around for one or two million years—this puts them toward the end of the timeline. This ... The uranium and plutonium can be used again as fuel. Most of the high-level waste (other than spent fuel) generated over the last 35 years has come from ... The practice is said to have originated thousands of years ago in India and ... The story featured may in some cases have been created by an ... The idea of school – grouping students together in a location for the purposes of leaning – has existed for thousands of years. Ancient Greece considered ...