:Many thanks; you've done a good job. 

 :You are strictly correct at the moment to change centuries to figures, but the MoS is over-prescriptive on that one at the moment. In fact, all the sources referenced in the article use "sixteenth", etc. As a history graduate, I am used to that. There is at present a long debate about the issue on the MoS talkpage, and I am confident that soon the MoS, as it used to do, will allow editors the choice.