This can be considered an early precursor to his extensive Star Trek career.
This was an early precursor of the son groups that developed later in Havana.
The film is often seen as an early precursor of film noir.
If the legend were true it would imply that the present building had an earlier precursor.
Ritter's experiments were an early precursor to what would become photography.
The earliest precursors to chip music can be found in the early history of computer music.
The system was an early, and less effective, precursor of the Ouija boards that later became so popular.
In many of these nations, the organization also served as an early precursor to the Scouting movements.
The six member group was the early precursor of today's 25 member European Union.
They are an early precursor to the democratic system.