Here is a list of my PhD supervisor, their PhD supervisor... their academic `advisor' (in the days before PhDs)... etc.
Note that the latter (`advisor') links are due to Wikipedia, so trust them as much as you want to. But these are also reported by the Mathematics Genealogy Project (MGP). Also there are some additional branches, not shown above, due to multiple `advisors'.
In the MGP you can take things back even further. From Isaac Newton to:
For those names in bold above, see here.
In addition, a different route, via Ernest Rutherford then Alexander Bickerton, … leads all the way back to Nasir al-Din al-Tusi (or perhaps more properly Naṣīr al-Dīn al-Ṭūsī, who lived AD 1201--1274. See this .pdf for the route, which also includes the route above, including some of the additional `advisor' branches. As of 2017 July Nasir al-Din al-Tusi was the person in the MGP with the largest number of descendants, 140305.
My Erdős number is 5 because, according to the American Mathematical Society's webform, my PhD supervisor -- who I have co-authored many papers with -- has an Erdős number of 4). I don't have a Bacon number.
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