This is a huge topic and a labour of love. Clearly, there is a long way to go. It might be worth appreciating what is here rather than get frustrated about what is not.
If you can help add resources, or improve what is here, that would be much appreciated.
Timeline menu shows all of the pages categorised by their era.
Themes shows some of the pages following themes through the history. But you can achieve the same thing by using the "Themes" filter on the Timeline page.
Resources contains additional resources
The heart of this site is the Timeline (see the menu at the top right).
It lists all of the people, events etc. so it is a long list. To shorten it and find what you want, use the filters.
Use the search function (Magnifying glass) at the top right to search for anything on any page.