This list of the 100 oldest .COM domains currently registered a is fascinating look at the history of the Internet. Who was visionary enough to register a .COM domain, and when?
1. 15-Mar-1985 SYMBOLICS.COM2. 24-Apr-1985 BBN.COM3. 24-May-1985 THINK.COM4. 11-Jul-1985 MCC.COM5. 30-Sep-1985 DEC.COM6. 07-Nov-1985 NORTHROP.COM7. 09-Jan-1986 XEROX.COM8. 17-Jan-1986 SRI.COM9. 03-Mar-1986 HP.COM10. 05-Mar-1986 BELLCORE.COM11= 19-Mar-1986 IBM.COM11= 19-Mar-1986 SUN.COM13= 25-Mar-1986 INTEL.COM13= 25-Mar-1986 TI.COM15. 25-Apr-1986 ATT.COM
(Thanks, Christopher!)