The Chicago Board of Trade, also known as the CBOT, was established in 1848 and is the world's oldest futures and options exchange. During the financial boom of 1980s, the trading pits were jam-packed with ambitious traders looking to make a fortune. The pits were so loud from all the commotion that traders would relay information back and forth to each other using hand signals. As electronic trading continues to dominate order flow, the traders in the pits have been slowly disappearing. Most of what still remains in the pits are just the memories. Millions of dollars were made and millions of dollars were lost.