What day of the week was January 21, 2004?

The day of the week January 21st, 2004 fell on was a Wednesday.

Yordan Radichkov the Bulgarian playwright (b. 1929) died on this day in 2004.

NASA's MER-A (the Mars Rover Spirit) ceases communication with mission control. The problem lies in the management of its flash memory and is fixed remotely from Earth on February 6.