- Pál Szalai (September 3, 1915 – January 16, 1994) also spelled Pál Szalay and later anglicized as Paul Sterling was a high-ranking Hungarian police officer and reinstated member of the Arrow Cross Party after 1944. In 1945, together with Swedish diplomat Raoul Wallenberg, Szalai helped save hundreds of Hungarian Jews in the Budapest ghetto. In 2009, he was honored by Israel as Righteous among the Nations.
- Calcium (Wikipedia)
Calcium is a chemical element; it has symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. It is the fifth most abundant element in Earth’s crust, and the third most abundant metal, after iron and aluminium. The most common calcium compound on Earth is calcium carbonate, found in limestone and the fossilised remnants of early sea life; gypsum, anhydrite, fluorite, and apatite are also sources of calcium. The name derives from Latin calx “lime”, which was obtained from heating limestone.