Month names collection / metastudy

[eggyk]

When playing around with ordering by date, I searched through all of the "16th,15th,14th,13th century" entries to check if the dates couldn't be narrowed down any further. I discovered that there are often other references that sometimes helpfully narrow the date range. However, to my absolute dismay, I also discovered that Gallica sometimes gets the entire century wrong. I don't know how, I don't know why, but it's Gallica's fault!   I assumed it must be the classic 15th century = 1500s mistake, but it was the other way around.. 

For example, Épinal. Ms. 243 was correctly entered as 16thC (Gallica's displayed date), but actually dates to between 1470-1480. To be fair, I guess it's technically only 20 years off, but "16th century" implies a potential date up to 1600AD so it's quite the difference. 

Anyway, I went through the uncertain dated items and updated them where possible. If I updated the date or the location, I added the source(s) that made those claims in a new column. Many are in a far narrower date range now, but it is important to note that there are multiple that have conflicting claims. Biblissima, JONAS, ARCA, and other sites often include expanded information too: handwriting style, locations, languages, provenance, and descriptions of specific passages, which may be helpful in the future.