- Saint Kitts and Nevis (Wikipedia)
Saint Kitts and Nevis (/-ˈkɪts … ˈniːvɪs/), officially the Federation of Saint Christopher and Nevis, is an island country consisting of the two islands of Saint Kitts and Nevis, both located in the West Indies, in the Leeward Islands chain of the Lesser Antilles. With 261 square kilometres (101 sq mi) of territory, and roughly 48,000 inhabitants, it is the smallest sovereign state in the Western Hemisphere, in both area and population, as well as the world’s smallest sovereign federation. The country is a Commonwealth realm, with Charles III as King and head of state.
- Leonhard Euler (Wikipedia)
Leonhard Euler (/ˈɔɪlər/ OY-lər, German: [ˈleːɔnhaʁt ˈʔɔʏlɐ], Swiss Standard German: [ˈleːɔnhart ˈɔʏlər]; 15 April 1707 – 18 September 1783) was a Swiss mathematician, physicist, astronomer, geographer, logician, and engineer who founded the studies of graph theory and topology and made pioneering and influential discoveries in many other branches of mathematics such as analytic number theory, complex analysis, and infinitesimal calculus. He introduced much of modern mathematical terminology and notation, including the notion of a mathematical function. He is also known for his work in mechanics, fluid dynamics, optics, astronomy, and music theory.