I was mildly curious to find out what the inevitable ending crisis would be, though I had a good suspicion. Now to the inaccuracies. They begin immediately, with Solange wearing lace when lace wasn't invented until the 16th century. Then, she and Damon are the children of marquesses, at least 200 years before the title was created in England. Solange uses a glass mirror to examine her appearance, at a time when very wealthy people used polished silver.
Men wear cotton garments before cotton comes to Europe.
Solange hears the song of a cardinal, a member of the finch family native to North America. The distance between Dover in England and Calais in France is 21 miles. I'm not a history professor, just an interested layperson, so the knowledge I have that made these errors apparent is not particularly specialized. In fact, I was able to double-check everything listed above in an ordinary encyclopedia. One or two of these inaccuracies would not have been worth mentioning.