Friedrich Ludwig Gottlob Frege (; 8 November 1848 – 26 July 1925 ) was a German mathematician, logician and philosopher.

Various smaller scientific fragments have been collected in the editions of Johann Gottlob Schneider ( 1818 – 21 ) and Friedrich Wimmer ( 1842 — 62 ) and in Hermann Usener's Analecta Theophrastea.

36-44 ; Friedrich Klingner, Christian Gottlob Heyne ( Leipzig: Poeschel & Trepte, 1937, 25 pages ).

His correspondence with Christian Gottlob Heyne and Georg Friedrich Benecke was published by K. Dziatzko ( Leipzig, 1893 ).

The best-known thinkers in the movement were Johann Gottlieb Fichte, Friedrich Schelling, and Georg Wilhelm Friedrich Hegel, while Friedrich Heinrich Jacobi, Gottlob Ernst Schulze, Karl Leonhard Reinhold, and Friedrich Schleiermacher were also major contributors.

Hänlein ( 1762 – 1829 ), Christoph Friedrich von Ammon and Heinrich Eberhard Gottlob Paulus, and afterwards as sole editor ; from 1801 to 1804 of the Journal für theologische Litteratur ; and from 1805 to 1811 of the Journal für auserlesene theologische Litteratur.

** Friedrich Gottlob Haase ( 1858 )

Friedrich Ludewig Bouterwek ( 15 April 1766 – 9 August 1828 ), German philosopher and critic, was born to a mining director at Oker, today a district of Goslar in Lower Saxony, and studied law and philology under Christian Gottlob Heyne and Johann Georg Heinrich Feder at the University of Göttingen.

Besides the central figures listed above, important contributors to German idealism also included Friedrich Heinrich Jacobi, Gottlob Ernst Schulze, Karl Leonhard Reinhold, and Friedrich Schleiermacher.

The architect Gottlob Friedrich Thormeyer painted his portrait in 1829.

Ackner continued his studies in Göttingen where he heard among others Christian Gottlob Heyne, Johann Friedrich Blumenbach, Johann Beckmann and Arnold Hermann Ludwig Heeren.

On May 17, 1764, Charlotte married Baron Gottlob Ernst Josias Friedrich von Stein ( 1735-1793 ).

The village was the sphere of action of the Krippen villager and inventor of mechanical wood pulp for the manufacture of paper, Friedrich Gottlob Keller ( 1816 – 95 ), from 1853 to his death.

Friedrich Gottlob Haase ( January 4, 1808 – August 16, 1867 ) was a German classical scholar.

Coincidentally, in around 1838 a German weaver by the name of Friedrich Gottlob Keller read Réaumur's report and got curious.

" Keller, Friedrich Gottlob ".

Der Erfinder des Holzschliffs Friedrich Gottlob Keller.

* Sittauer, Hans L. Friedrich Gottlob Keller.

" Keller, Friedrich Gottlob ".

* 1814 – The Times in London is for the first time printed by automatic, steam powered presses built by the German inventors Friedrich Koenig and Andreas Friedrich Bauer, signaling the beginning of the availability of newspapers to a mass audience.

A few years before the invention of the Stanhope and the Columbian, Friedrich Koenig of Germany invented a steam-powered continuous press using rollers.

* Friedrich Koenig, with the assistance of Andreas Friedrich Bauer, produces the first steam printing press, in London.

* Friedrich Koenig ( 1774 – 1821 ), printer

* Friedrich Koenig ( 1774 – 1833 ), German inventor

Friedrich Koenig

Andreas Friedrich Bauer ( August 18, 1783 – 1860 ) was a German engineer who developed the first functional steam-powered printing press with his colleague Friedrich Koenig, who had invented the technology and sold it to The Times in London in 1814.

It was founded by Friedrich Koenig and Andreas Friedrich Bauer in Würzburg in 1817, making it the oldest printing press manufacturer in the world.

The table lists the maximum number of pages which the various early 19th century press designs of Friedrich Koenig and Andreas Bauer could print per hour, compared to earlier hand-operated screw presses.

Johann Carl Friedrich Gauss (;, ) ( 30 April 177723 February 1855 ) was a German mathematician and physical scientist who contributed significantly to many fields, including number theory, statistics, analysis, differential geometry, geodesy, geophysics, electrostatics, astronomy and optics.

Carl Friedrich Gauss was born on 30 April 1777 in Braunschweig ( Brunswick ), in the Duchy of Braunschweig-Wolfenbüttel, now part of Lower Saxony, Germany, as the son of poor working-class parents.

George Frideric Handel ( German: Georg Friedrich Händel ; ) ( 23 February 1685 – 14 April 1759 ) was a German-born British Baroque composer, famous for his operas, oratorios, anthems and organ concertos.

Ulrich Friedrich Wilhelm Joachim von Ribbentrop ( 30 April 1893 – 16 October 1946 ) was Foreign Minister of Germany from 1938 until 1945.

The German Embassy in Ankara had been vacant ever since the retirement of the previous ambassador Friedrich von Keller in November 1938, and Ribbentrop was only able to get the Turks to accept Papen as Ambassador when the Turkish Foreign Minister Şükrü Saracoğlu complained to Kroll in April 1939 about when the Germans were ever going to sent a new ambassador.

Kurt Friedrich Gödel (; ; April 28, 1906 – January 14, 1978 ) was an Austrian American logician, mathematician, and philosopher.

In April 1849, the Frankfurt Parliament offered the title of Emperor to the Prussian king Friedrich Wilhelm IV.

* Friedrich Engels, “ On Rifled Cannon ," articles from the New York Tribune, April, May and June, 1860, reprinted in Military Affairs 21, no.

Friedrich Wilhelm Christian Karl Ferdinand von Humboldt ( 22 June 1767 – 8 April 1835 ) was a Prussian philosopher, government functionary, diplomat, and founder of the University of Berlin, which was named after him ( and his brother, naturalist Alexander von Humboldt ) in 1949.

* April 10 – Friedrich Franz III, Grand Duke of Mecklenburg-Schwerin ( b. 1851 )

* April 29 – Death of Friedrich Wilhelm, the " Great Elector " of Brandenburg-Prussia.

* April 15 – Johann Friedrich Fasch, German composer ( d. 1758 )

* April 29 – Friedrich Wilhelm I of Brandenburg ( b. 1620 )

* April 6 – National Safety Council of Australia chief executive John Friedrich is arrested after defrauding investors to the tune of $ 235 million.

* April 23 – Karl Friedrich Bahrdt, German theologian and adventurer ( b. 1741 )

* April 27 – Thirty Years ' War: A Skirmish at Mingolsheim is fought between Protestant forces under Mansfeld and Georg Friedrich of Baden-Durlach, against Imperial forces under Tilly.

* April 8 – Stephanie de Beauharnais, adopted daughter of Napoleon Bonaparte, marries Prince Karl Ludwig Friedrich of Baden.

* April 6 – Friedrich Wilhelm Ritschl, German scholar ( d. 1876 )

* April 22 – Friedrich Robert Faehlmann, Estonian philologist and physician ( b. 1798 )

* April 7 – Friedrich Myconius, German Lutheran theologian ( b. 1491 )

* April 13 – Friedrich Graf von Wrangel, Prussian field marshal ( d. 1877 )

* April 30 – Carl Friedrich Gauss, German mathematician, astronomer, and physicist ( d. 1855 )

* April 23 – Friedrich von Hagedorn, German poet ( d. 1754 )

Together, Wilhelm and Henriette had four children: Jacob Grimm ( 3 April 1826 – 15 December 1826 ), Herman Friedrich Grimm ( 6 January 1828 – 16 June 1901 ), Rudolf Georg Grimm ( 31 March 1830 – 13 November 1889 ), and Barbara Auguste Luise Pauline Marie ( 21 August 1832 – 9 February 1919 ).

Count Johann Friedrich Struensee ( 5 August 1737 – 28 April 1772 ) was a German doctor.