The first plans on D2 motorway/freeway appeared in the 1960s, from the Czechoslovak government act in 1963 to build 117 km long motorway from Brno to Bratislava, with 58.4 km in today's Slovakia.
The initial plans for the D2 motorway/freeway were established in the 1960s, stemming from a Czechoslovakian government decree of 1963 to construct a 117 kilometer long highway between Brno and Bratislava, with 58.4 kilometers located within present-day Slovakia.