Generally, a disease like this is caused by an infectious agent and not spread between people. Neurosyphilis -- tabes dorsalis, although infectious, is not a genetic disease. It is not caused by a defective or abnormal gene.
1 Movies and animated cartoons. 2  While some color film processes (including hand coloring) were experimented with and in limited use from the earliest days of the motion picture, the switch from most films being in black-and-white to most being in color was gradual, taking place from the 1930s to the 1960s.
Best Answer: It wasn't a home video that Crawford used -- it was home movies. A VERY different technology. Color film for movies was first available, generally speaking in 1935. Kodak introduced Kodachrome as 16mm film for home movies then, but in 1936 also began producing 8mm home movie film. The difference between color video and color film however, are a whole nother issue.