[animaomnium]

"settecento" can be read as "seven hundred" in Italian; gramps is proposing to use a more specific word as a tag for Italian art from the 1700s. Of course, 700 is not 1700, hence the "drop 1000 years". The prefix seventeen in Italian is "diciassette-" so perhaps "diciasettecento" would be more accurate for the 1700s. (settecento is shorter, though.)

Hope this clarifies. Not to miss the forest for the trees, to reiterate, the main takeaway is that it may be better to define and use a specific tag to pinpoint a sequence of events in a given period (e.g. settecento) instead of gesturing with something as arbitrary and wide as a century (18th century art).

[worstspotgain]

You're looking for millesettecento [1]. Italian doesn't do 10-99 hundreds, just 1-9 hundreds and 1-99 thousands.

[1] https://www.youtube.com/watch?v=LMIGnMs4VZA