Ludwig van Beethoven | Karl Marx | Ludwig Maximilian University of Munich | Ludwig I of Bavaria | Ludwig Wittgenstein | Ludwig Leichhardt | Karl Pilkington | Karl Lagerfeld | Karl G. Heider | Karl Rove | Karl Pearson | Karl May | Karl Liebknecht | Karl Friedrich Schinkel | Karl Dönitz | Karl Jenkins | Karl Stefanovic | Karl Bodmer | Ludwig Tieck | Ludwig Boltzmann | Ludwig | Karl Wilhelm Friedrich Schlegel | Karl Malone | Christa Ludwig | Ludwig Mies van der Rohe | Karl Wolf | Karl Valentin | Karl Popper | Karl Malden | Karl Kesel |
The vanillin plant Holzminden was not very successful before Karl Ludwig Reimer discovered the Reimer-Tiemann reaction which opened an alternative synthesis route to vanillin.