Stephen Jones has created an interesting video that shows the chronology of the First Presidency and Quorum of the Twelve from 1832 to 2018. As each year ticks by, you see the movement of leaders in and out of leadership positions.
The scales on the right show the average age of the apostles and their combined tenure. (The filled arrows show the current age and tenure and the unfilled arrows show the historical highs.)
Watch the video below:
Thanks to Mormon Life Hacker for making us aware of this video.
Here is a list of other member-created videos I have shared. If you find other videos you think I should share, please post a comment below.