The years that these films take place can be figured out by the year given in Revenge of Frankenstein which is 1860 at the beginning of the film.
Curse Of Frankenstein- Flash back depicted in the film to Dr. Frankenstein being fifth-teen years old would take place in the year 1845. The main story would take place in 1860 this would make Dr. Frankenstein thirty years old. This would place Dr. Frankenstein's birth year at 1830.
Revenge Of Frankenstein - Starts in 1860 and moves forward three years so the year would be 1863.
Evil Of Frankenstein- 1868
Frankenstein Created Woman- 1874
Frankenstein Must Be Destroyed- 1878
Frankenstein And The Monster From Hell - 1886
You can figure out the years from Evil Of Frankenstein all the way to Frankenstein And The Monster From Hell by taking note of the clothing, architecture and what was considered modern technology during those time periods which is presented in the films.
