Today in STEM History - September 14, 1998 MCI Communications and WorldCom merged, creating MCI WorldCom, a telecommunications powerhouse. Today, it serves as a cautionary tale about corporate ethics and accountability due to its involvement in one of the largest accounting frauds in U.S. history. In the aftermath of the scandal, there were increased regulations and reforms in corporate governance and accounting practices, including the Sarbanes-Oxley Act of 2002, aimed at preventing such fraud