1. Can we please discuss that a set of STAYS from the 1750s (jesus christ get the terminology right, just because the Met says it does not mean it’s correct) is not the same as a set of STAYS from the 1770s? Similar, yes, but not the same. Think about how much the fashion changes in 1, 2, 5 years let alone TWENTY.
Here is a set of stays from England from 1770-80 (thanks V&A). Note the lines. The first pair is a half-boned set, the second is full-boned, but both were used at that time.
2. Same argument. 1830s /= 1840s.
3. 1810s is a huge range, and again this is an older style (clearly a variant on stays) instead of what is more common in the 1810s (thanks KCI). Also ffs the one that’s highlighted above should be spiral laced.
5. Here’s a closer approximation of a corset from 1883 (instead of 10 years later). Not to mention that 1891 one is clearly an earlier style - like just because something can be dated to that doesn’t mean that it’s the height of fashion - you’re having old women stick to earlier styles because it’s what they’re used to (rather like today).
I’m too fucking exhausted to deal with the other ones. Would it kill people to actually do research?