Weismann ’ s developmental concept was based on a mistaken interpretation of an 1882 experiment carried about by Wilhelm Roux, in which Roux killed one of the cells of a frog embryo at the two-cell stage.

In 1877, German physiologist Wilhelm Kühne ( 1837 – 1900 ) first used the term enzyme, which comes from Greek ενζυμον, " in leaven ", to describe this process.

On July 27, 1900, during the Boxer Rebellion in China, Kaiser Wilhelm II of Germany gave the order to act ruthlessly towards the rebels: " Mercy will not be shown, prisoners will not be taken.

The term was originally coined by Friedrich Wilhelm Joseph von Schelling ( 1775 – 1854 ) to depict early stages of monotheism, however Max Müller ( 1823 – 1900 ), a German philologist and orientalist, brought the term into common usage.

* 1900 – Wilhelm Cauer, German mathematician ( d. 1945 )

* 1900 – Kaiser Wilhelm II makes a speech comparing Germans to Huns ; for years afterwards, " Hun " would be a disparaging name for Germans.

* March 29 – Wilhelm Liebknecht, German journalist and politician ( d. 1900 )

** Wilhelm Rediess, SS and Police Leader of Nazi-occupied Norway ( suicide ) ( b. 1900 )

She despised and distrusted her nephew, Wilhelm II of Germany, calling him in 1900 " inwardly our enemy ".

The phenomenological tie-in with the sociology of knowledge stems from two key historical sources for Mannheim's analysis: Mannheim was dependent on insights derived from Husserl's phenomenological investigations, especially the theory of meaning as found in Husserl's Logical Investigations of 1900 / 1901 ( Husserl: 2000 ), in the formulation of his central methodological work: " On The Interpretation of Weltanschauung " ( Mannheim: 1993: see fn41 & fn43 )-this essay forms the centerpiece for Mannheim's method of historical understanding and is central to his conception of the sociology of knowledge as a research program ; and The concept of " Weltanschauung " employed by Mannheim has its origins in the hermeneutic philosophy of Wilhelm Dilthey, who relied on Husserl's theory of meaning ( above ) for his methodological specification of the interpretive act ( Mannheim: 1993: see fn38 ).

On July 27 1900, when Wilhelm II spoke during departure ceremonies for the German contingent to the relief force in China, an impromptu, but intemperate reference to the Hun invaders of continental Europe would later be resurrected by British propaganda to mock Germany during World War I and World War II.

Cooksville was laid out under the name Kochsville on 4 December 1882 by Frederick Wilhelm Koch ( 4 September 1829 – 4 May 1900 ).

In 1900 he went to the University of Würzburg and became successor of Wilhelm Conrad Röntgen.

Wilhelm ( later William ) Steinitz ( Prague, May 17, 1836 – August 12, 1900 ) was an Austrian and then American chess player and the first undisputed world chess champion from 1886 to 1894.

In 1900, Marc began to study at the Academy of Fine Arts, Munich, where his teachers would include Gabriel von Hackl and Wilhelm von Diez.

In 1900 Daimler died and Wilhelm Maybach quit DMG in 1907.

Wilhelm Tell memorial in Altdorf, circa 1900.

The German Fountain (" The Kaiser Wilhelm Fountain "), an octagonal domed fountain in neo-Byzantine style, which was constructed by the German government in 1900 to mark the German Emperor Wilhelm II's visit to Istanbul in 1898, is located at the northern entrance to the Hippodrome area, right in front of the Blue Mosque.

Wilhelm Martin Philipp Christian Ludwig Liebknecht ( 29 March 1826 – 7 August 1900 ) was a German social democrat and one of the principal founders of the SPD.

In 1900, with the burial of Wilhelm Liebknecht, founder of the Social Democratic Party ( SPD ), the cemetery became the resting place for many of the leaders and activists of Germany's anti-fascist, social democratic, socialist and communist movements.

He became editor of Vorwärts after the death of Wilhelm Liebknecht in 1900, but was subsequently called upon to resign from that position.

* Wilhelm Liebknecht ( 1900 )

* Wilhelm Kühne ( 1837 – 1900 ), a German physiologist

He studied philosophy and sociology in 1899 – 1900 with Georg Simmel in Berlin, spent a semester in Straßburg ( 1900 ), and took his PhD in Philosophy in 1903 at Heidelberg under Wilhelm Windelband ( 1848 – 1915 ) and Alfred Hettner ( 1859 – 1941 ) with a dissertation titled Masse und Publikum.

* 1766 – Wilhelm von Kobell, German painter and printmaker ( d. 1853 )

* 1770 – Georg Wilhelm Friedrich Hegel, German philosopher ( d. 1831 )

* 1774 – British scientist Joseph Priestley discovered oxygen gas, corroborating the prior discovery of this element by German-Swedish chemist Carl Wilhelm Scheele.

* 1925 – Paul von Hindenburg defeats Wilhelm Marx in the second round of the German presidential election to become the first directly elected head of state of the Weimar Republic.

* 1940 – The " Aufbau Ost " directive is signed by Wilhelm Keitel.

* 1832 – Wilhelm Wundt, German psychologist ( d. 1920 )

August Wilhelm Ambros ( November 17, 1816 – June 28, 1876 ) was an Austrian composer and music historian of Czech descent.

* 1719 – Johann Wilhelm Ludwig Gleim, German poet ( d. 1803 )

Adolph Wilhelm Hermann Kolbe ( September 27, 1818 – November 25, 1884 ) was a German chemist.

* 1667 – Anna Maria Luisa de ' Medici, Italian wife of Johann Wilhelm, Elector Palatine ( d. 1743 )

* 1929 – Prince Albert Wilhelm Heinrich of Prussia ( b. 1862 )

* 1658 – Johann Wilhelm, Elector Palatine ( d. 1716 )

The Arrhenius definition of acid – base reactions is a development of the hydrogen theory of acids, devised by Svante Arrhenius, which was used to provide a modern definition of acids and bases that followed from his work with Friedrich Wilhelm Ostwald in establishing the presence of ions in aqueous solution in 1884, and led to Arrhenius receiving the Nobel Prize in Chemistry in 1903 for " recognition of the extraordinary services ... rendered to the advancement of chemistry by his electrolytic theory of dissociation ".

Albert Frederick was married in 1573 to Marie Eleonore of Cleves, a daughter of Wilhelm, Duke of Jülich-Cleves-Berg and Archduchess Maria of Austria ( 1531 – 1581 ).

# Wilhelm of Prussia ( 23 June 1585 – 18 January 1586 ).

* Wilhelm Biltz ( 1877 – 1943 ), German chemist and scientific editor

The birth of the Bildungsroman is normally dated to the publication Wilhelm Meister's Apprenticeship by Johann Wolfgang Goethe in 1795 – 96.

At the Battle of Jena-Auerstedt on October 14, 1806 – when Napoleon invaded Prussia and defeated the massed Prussian-Saxon army commanded by Karl Wilhelm Ferdinand, Duke of Brunswick – he was captured, one of the 25, 000 prisoners captured that day as the Prussian army disintegrated.

With Minna Waldeck he also had three children: Eugene ( 1811 – 1896 ), Wilhelm ( 1813 – 1879 ) and Therese ( 1816 – 1864 ).

* 1980 – Manuel Wilhelm, German rugby player

* 1895 – Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.

* 1776 – Johann Wilhelm Ritter, German physicist ( d. 1810 )