The Sherlock Holmes stories have been set in several time period beginning in the Victorian Era.?

Possibly the series of movies produced by Universal Studios, in which Holmes and Watson (Basil Rathbone and Nigel Bruce) are in America fighting the Nazis. Watson would have been too old to have been a medical officer in the earlier war in Afghanistan (The Second Anglo-Afghan War 1878-1880) and spry enough 60 years later to get around the U.S. in the 1940s. So would Holmes. I suppose there was something about beekeeping and honey that kept them young.

The original Dr. Watson was the one written of by Sir Arthur Conan Doyle, and though "A Study in Scarlet" was published in 1887, the events of the deaths of Drebber and Stangerson occurred in 1881.

You're going to have to tell us what the third time period is. I know about the Victorian stories, and that includes all the movies I can think of up until the last few years, and then you have the series from the last few years, which are obviously contemporary. So, what's the third period? Your question is moot if you can't provide one.