Assertion: specific configuration | /r/HasProperty | studied for instance
Facets:
value: earlier
type: TEMPORAL
value: by thomas kirkman
type: OTHER
value: in 1849
type: TEMPORAL
Source sentences:
text: Although certain specific configurations had been studied earlier (for instance by Thomas Kirkman in 1849), the formal study of configurations was first introduced by Theodor Reye in 1876, in the second edition of his book Geometrie der Lage, in the context of a discussion of Desargues' theorem.