U.S. acquires vast tracts of Mexican territory in wake of Mexican War including California and New Mexico.
1848 · Chicago Board of Trade is organized
Starting as a voluntary association to help buyers and sellers meet to negotiate and make contracts. The Chicago Board of Trade is one of the oldest futures and options exchanges in the world and it is open 22 hours per day to stay competitive.
Abraham Lincoln issues Emancipation Proclamation, declaring slaves in Confederate states to be free.