Obverse. Photo © Numismatica Castaldi
  • 2 Euro 2023, Greece, 150th Anniversary of Birth of Constantin Carathéodory
  • 2 Euro 2023, Greece, 150th Anniversary of Birth of Constantin Carathéodory
Description

Constantin Carathéodory (1873–1950) was a Greek mathematician who spent most of his professional career in Germany. He made significant contributions to real and complex analysis, the calculus of variations, and measure theory. He also created an axiomatic formulation of thermodynamics. Carathéodory is considered one of the greatest mathematicians of his era and the most renowned Greek mathematician since antiquity.

Obverse

Depicts the profile of Constantin Carathéodory facing left and his algebraic formula next to it. The scientist's name and years of his life above, the country name below. The date, the mintmark (palmette) of the Greek Mint and the engraver's privy mark on the right. The twelve stars of the European Union surround the design on the outer ring.

Engraver: Georgios Stamatopoulos

ΚΩΝΣΤΑΝΤΊΝΟΣ ΚΑΡΑΘΕΟΔΩΡΉ
L(A+B)=µA<1/2
⌠(h-U)α√T dt=min
2023
ΣΤΑΜ
ΕΛΛΗΝΙΚΗ ΔΗΜΟΚΡΑΤΙΑ

Reverse

A geographical map of Western Europe spans the outer ring and inner core on the right side of the coin. The inscription 2 EURO is superimposed over the map of Europe, with the numeral “2” located in an open field representing the eastern Atlantic Ocean.

12 stars are located on the right side of the outer ring, with six stars atop the map of Europe and six stars below it; six vertical stripes cut across the inner core of the coin, visually connecting the upper and lower star segments.

Luc Luycx, a designer at the Royal Belgian Mint, designed the Euro’s common reverse; his initials, LL, are seen on the right side of the design, just under the “O” in “EURO.”

2 EURO
LL

Edge

HELLENIC REPUBLIC in Greek

ΕΛΛΗΝΙΚΗ ΔΗΜΟΚΡΑΤΙΑ ★

2 Euro

150th Anniversary of Birth of Constantin Carathéodory

KM#
Characteristics
Type Commemorative Issue (Circulating)
Material Bi-Metallic
Ring Cupronickel
Center Nickel Brass
Weight 8.5 g
Diameter 25.75 mm
Thickness 2.2 mm
Shape round
Alignment Medal
Mint
Bank of Greece

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