Filipp Ridder

Filipp Filippovich Ridder (Russian: Филипп Филиппович Риддер); b.1759 in Saint Petersburg, Russian Empire – d.1838 in Riga) was a Russian explorer and mining engineer of German descent.[1] Ridder discovered polymetallic ores in north-eastern Kazakhstan in 1784.[2][3]

A town in that region, Ridder, bore Philip Ridder's name from 1786 to 1941, when it was changed to Leninogorsk; however, in 2002, the name was reverted to Ridder.[3][1] The town is notable as the eastern terminus of European route E40.

References

  1. ^ a b "Who Will Take Lenin's Place? A Dispute Over A Monument And Decolonization In Kazakhstan". Radio Free Europe. 26 June 2024. Retrieved 2026-02-12.
  2. ^ Mortazavi, Ali; Kuzembayev, Nursulta (September 2022). "Development of a Weighting Procedure for Geomechanical Risk Assessment". Energies. 15 (18) – via EBSCOhost.
  3. ^ a b "Town of Leninogorsk, Kazakhstan, to regain historic name – Ridder". Pravda.ru. 11 June 2002. Retrieved 2026-02-12.


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