There is a thread about the dates for Old Testament Prophets:
https://community.logos.com/forums/t/204888.aspx?PageIndex=1
and in that thread, Gordon Jones posted a picture of a resource from his library called "Old Testament Prophets Timeline"
I own this resource, but when i click on it after doing a 'find' in my library, all i get is the spinning beachball. I've had to force quit and restart Logos (i'm running the most current version of Logos 10), and i still can not open this resource.
I went to Logos.com to search for the resource, and it does not come up in a search on the website.
I'm confused, and not sure what is going on, but it looks like an interesting resource, and i do own it since it shows up in my library as Type:timeline "old testament prophets timeline"