Geodesic
Troubles with the year
Antiquitates Mathematicae, Tome 3 (2009), pp. 287 - 299.

Voir la notice de l'article provenant de la source Annales Societatis Mathematicae Polonae Series

Nearly to the end of XIX century it was believed that the diurnal movement ofthe Earth could give a correct time (that is time which is common to all eventsof the universe). Today we know that the Earth has a non-regular movement.This means that astronomical-only dating of historical events can create errors.The second part of the paper is concerned with recalling of an idea byAndrzej Grzegorczyk that dates given by historians are referring not to historicalmoments but to the intervals of time. For instance, the date „1791” ofan event does not mean that something happened by midnight of 1st January1791, but that it happened in one of the moments (or time intervals) withinthe year 1791. 
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Krzysztof Tatarkiewicz. Troubles with the year. Antiquitates Mathematicae, Tome 3 (2009), pp.  287 - 299. doi : 10.14708/am.v3i1.6360. http://geodesic.mathdoc.fr/articles/10.14708/am.v3i1.6360/

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