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How can I know which is the oldest tag of Physics Stack Exchange?

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Assuming the database IDs were assigned sequentially, use this SEDE query.

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  • $\begingroup$ And to keep other inquiring minds from needing to run the query (which goes faster for only the top 10): the answer is quantum-spin $\endgroup$
    – Jon Custer
    Aug 17 at 22:10
  • $\begingroup$ not sure all tags are returned. For instance the tag: coherent-states is not listed. $\endgroup$ Aug 17 at 22:13
  • $\begingroup$ @ZeroTheHero It lists the top few. coherent-states has id 1994, see data.stackexchange.com/physics/query/edit/1776411 $\endgroup$
    – rob Mod
    Aug 17 at 23:49
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    $\begingroup$ Presumably the first tag is the alphabetically-first tag on /q/1 on the site. Which, indeed, should be quantum-spin. $\endgroup$ Aug 20 at 23:48

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