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Germany
200th Anniversary of the birth of Carl Friedrich Gauss
1977 J Silver 5 Mark 29mm (11.10 grams) .625 Silver (0.2251 oz. ASW)
Reference: KM# 145 | Engraver: Erich Ott
BUNDESREPUBLIK DEUTSCHLAND 5 DEUTSCHE MARK 1977 J, An eagle, the emblem of Germany.
CARL FRIEDRICH GAUSS 1777-1855, The bust of Carl Friedrich Gauss facing the viewer with the dates to the right.
Edge Lettering:
PAUCA ** SED ** MATURA
You are bidding on the exact item pictured, provided with a Certificate of Authenticity and Lifetime Guarantee of Authenticity.
 Johann Carl Friedrich Gauss (30 April 1777 – 23 February 1855) was a German mathematician and physicist who made significant contributions to many fields in mathematics and science. Sometimes referred to as the Princeps mathematicorum (Latin for ‘”the foremost of mathematicians”‘) and “the greatest mathematician since antiquity”, Gauss had an exceptional influence in many fields of mathematics and science, and is ranked among history’s most influential mathematicians.
Johann Carl Friedrich Gauss was born on 30 April 1777 in Brunswick (Braunschweig), in the Duchy of Brunswick-Wolfenbüttel (now part of Lower Saxony, Germany), to poor, working-class parents. His mother was illiterate and never recorded the date of his birth, remembering only that he had been born on a Wednesday, eight days before the Feast of the Ascension (which occurs 39 days after Easter). Gauss later solved this puzzle about his birthdate in the context of finding the date of Easter, deriving methods to compute the date in both past and future years. He was christened and confirmed in a church near the school he attended as a child.
Gauss was a child prodigy. In his memorial on Gauss, Wolfgang Sartorius von Waltershausen wrote that when Gauss was barely three years old he corrected a math error his father made; and that when he was seven, solved an arithmetic series problem faster than anyone else in his class of 100 pupils. There are many versions of this story, with various details regarding the nature of the series – the most frequent being the classical problem of adding together all the integers from 1 to 100. (See also under “Anecdotes” below.) There are many other anecdotes about his precocity while a toddler, and he made his first groundbreaking mathematical discoveries while still a teenager. He completed his magnum opus, Disquisitiones Arithmeticae, in 1798, at the age of 21—though it was not published until 1801. This work was fundamental in consolidating number theory as a discipline and has shaped the field to the present day.
Gauss’s intellectual abilities attracted the attention of the Duke of Brunswick, who sent him to the Collegium Carolinum (now Braunschweig University of Technology), which he attended from 1792 to 1795, and to the University of Göttingen from 1795 to 1798. While at university, Gauss independently rediscovered several important theorems. His breakthrough occurred in 1796 when he showed that a regular polygon can be constructed by compass and straightedge if the number of its sides is the product of distinct Fermat primes and a power of 2. This was a major discovery in an important field of mathematics; construction problems had occupied mathematicians since the days of the Ancient Greeks, and the discovery ultimately led Gauss to choose mathematics instead of philology as a career. Gauss was so pleased with this result that he requested that a regular heptadecagon be inscribed on his tombstone. The stonemason declined, stating that the difficult construction would essentially look like a circle.
The year 1796 was productive for both Gauss and number theory. He discovered a construction of the heptadecagon on 30 March. He further advanced modular arithmetic, greatly simplifying manipulations in number theory. On 8 April he became the first to prove the quadratic reciprocity law. This remarkably general law allows mathematicians to determine the solvability of any quadratic equation in modular arithmetic. The prime number theorem, conjectured on 31 May, gives a good understanding of how the prime numbers are distributed among the integers.
Gauss also discovered that every positive integer is representable as a sum of at most three triangular numbers on 10 July and then jotted down in his diary the note: “ΕΥΡΗΚΑ! num = Δ + Δ + Δ”. On 1 October he published a result on the number of solutions of polynomials with coefficients in finite fields, which 150 years later led to the Weil conjectures.
  Germany, officially the Federal Republic of Germany is a federal parliamentary republic in western-central Europe. It includes 16 constituent states and covers an area of 357,021 square kilometres (137,847 sq mi) with a largely temperate seasonal climate. Its capital and largest city is Berlin. With 81 million inhabitants, Germany is the most populous member state in the European Union. After the United States, it is the second most popular migration destination in the world.
Various Germanic tribes have occupied northern Germany since classical antiquity. A region named Germania was documented before 100 CE. During the Migration Period the Germanic tribes expanded southward. Beginning in the 10th century, German territories formed a central part of the Holy Roman Empire. During the 16th century, northern German regions became the centre of the Protestant Reformation.
The rise of Pan-Germanism inside the German Confederation resulted in the unification of most of the German states in 1871 into the Prussian-dominated German Empire. After World War I and the German Revolution of 1918-1919, the Empire was replaced by the parliamentary Weimar Republic. The establishment of the Third Reich in 1933 led to World War II and the Holocaust. After 1945, Germany split into two states, East Germany and West Germany. In 1990, the country was reunified.
 In the 21st century, Germany is a great power and has the world’s fourth-largest economy by nominal GDP, as well as the fifth-largest by PPP. As a global leader in several industrial and technological sectors, it is both the world’s third-largest exporter and importer of goods. Germany is a developed country with a very high standard of living sustained by a skilled and productive society. It upholds a social security and universal health care system, environmental protection and a tuition free university education.
Germany was a founding member of the European Union in 1993. It is part of the Schengen Area, and became a co-founder of the Eurozone in 1999. Germany is a member of the United Nations, NATO, the G8, the G20, and the OECD. The national military expenditure is the 9th highest in the world. Known for its rich cultural history, Germany has been continuously the home of influential artists, philosophers, musicians, sportsmen, entrepreneurs, scientists and inventors.
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