births
February 15, 1851
Spiru Haret, Romanian mathematician, astronomer, and politician, 55th Romanian Minister of Internal Affairs (died 1912)
Spiru Haret
Spiru C. Haret was a Romanian mathematician, astronomer, and politician. He made a fundamental contribution to the n-body problem in celestial mechanics by proving that using a third degree approximation for the disturbing forces implies instability of the major axes of the orbits, and by introducing the concept of secular perturbations in relation to this.
Ministry of Internal Affairs (Romania)
The Ministry of Internal Affairs of Romania is one of the eighteen ministries of the Government of Romania.