settecento means "700". Just proposed above as a way to say 18th century or 1700s, same as we sometimes remove the "2000" and just say "the 10s" for the decade

settecento means "700". Just proposed above as a way to say 18th century or 1700s, same as we sometimes remove the "2000" and just say "the 10s" for the decade starting 2010 (nobody cares for the 2011-as-start convention except people you don't want to talk to in the first place).