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The metals of antiquity are the seven metals which humans had identified and found use for in prehistoric times in Africa, Europe and throughout Asia: [1] gold, silver, copper, tin, lead, iron, and mercury. Zinc, arsenic, and antimony were also known during antiquity, but they were not recognised as distinct metals until later.
Deutschheim State Historic Site is a state-owned property located in Hermann, Missouri, United States, preserving historic houses and other structures, such as a barn and winery, built and used by German immigrants in the middle 19th century. [4]
It is called "Dutch" from Deutsch, i.e., "German", as it was the southern center of German-American settlement in St. Louis in the early 19th century. [2] It was the original site of Concordia Seminary (before it relocated to Clayton, Missouri), Concordia Publishing House, Lutheran Hospital, and other German community organizations. The German ...
Missouri communities motivated by the war attempted to outlaw German, and campaigned to change street names from "offensive-sounding" German to acceptable American names. [ 9 ] [ 10 ] Hermann German is a form of Rhenish German ( German : Rheindeutsch ), and there are other German settlements and German American farms where German is still ...
The coinage metals comprise those metallic chemical elements and alloys which have been used to mint coins. Historically, most coinage metals are from the three nonradioactive members of group 11 of the periodic table: copper, silver and gold. Copper is usually augmented with tin or other metals to form bronze.
Gilding metal is a type of tombac which is one of the most common jacketing materials for full metal and hollow-point jacketed bullets. The 1980 Olympic 'Bronze' medals were actually tombac. During World War II, Canada minted 5-cent pieces in tombac in 1942 and 1943. The German military used it for some combat medals during World War II.
Aristotle's metaphysical theory from times of antiquity had wide-ranging influence on similar theory found in later medieval Europe, as the historian Berthelot notes: The theory of exhalations was the point of departure for later ideas on the generation of metals in the earth, which we meet with Proclus, and which reigned throughout the middle ...
The addition of a second metal to copper increases its hardness, lowers the melting temperature, and improves the casting process by producing a more fluid melt that cools to a denser, less spongy metal. [6] This was an important innovation that allowed for the much more complex shapes cast in closed molds of the Bronze Age.