law of diminishing returns. A concept in economics that if one factor of production (number of workers, for example) is increased while other factors (machines and workspace, for example) are held constant, the output per unit of the variable factor will eventually diminish.
History of glass. The history of glassmaking can be traced back to 3500 BCE in Mesopotamia, but Mesopotamians may have created second-rate copies of glass objects from Egypt, where this complex craft actually originated. Other archaeological evidence suggests that the first true glass was made in coastal north Syria, Mesopotamia or Egypt.
Simply put, Early American Pattern Glass, which is also known as EAPG and âpattern glassâ is pressed glass that was made in America during the Victorian era (1850-1910). Early American Pattern Glass (EAPG), also known as pressed glass, was produced from roughly 1850 to 1910. Cheaper to manufacture than blown glass, this glassware was made in cast-iron molds and marketed as an economic alternative to hand-cut crystal.