 After the split of Czechoslovakia in 1993, the CESNET project was modified, and the CESNET network was put into operation at the beginning of 1993.From 1992 to 1999 CESNET supported a commercial network, but this activity was sold in early 1999 and from that time CESNET was fully focused on academic networking.The CESNET e-infrastructure is being purposefully built according to the specific needs of the research, scientific and academic community in the Czech Republic (which differ significantly from ordinary corporate ICT support requirements).