Looking at the Tudor map, one thing that really stands out is how many abbeys and monasteries there were (shown in pink), and how much of London was taken up by them.
https://en.wikipedia.org/wiki/Dissolution_of_the_monasteries
[1]: https://www.theguardian.com/education/2018/may/29/oxford-and...
[2]: https://www.theguardian.com/business/2009/oct/09/trinity-col...