At 11:05 -0400 01/10/21, Joseph B. Reid wrote: >The earliest reference to "à tous les temps, à tous les peuples" that I can >find was in the international conference of 1799.
In addition to what I said yesterday, I found that Isaac Beeckman from Holland had suggested in 1631 that the length of the second pendulum be taken as "the invariable measure for all people of all times and all places". Rendons à César ce qui est à César (old French maxim...) Louis
