Technology is everywhere now and then but when it comes to one of the most basic industrial methods, the procedure has remained the same for hundreds or tens of thousands of years. It is an Investment casting process and is one of mankind's oldest metalworking techniques. Investment Casting – The History Around five thousand years ago, the first record of this method was used to manufacture bronze, copper and gold gems and statuary of ancient Mesopotamian and Egyptian cultures, as well as the Han dynasty of China and the Aztecs. The lost wax casting method used bee wax to create a pattern that was then filled for the final casting. Sometime about 1100 A.D., the earliest text to explain the method was granted to a monk writing. Benvenuto Cellini learned about the writing by making a statue of the mythical figure of Perseus, with the head of Medusa, a statue still standing in Florence, Italy. By the mid-14th century, when bronze statues and other art works were made, the investme