Career
He was the brother of the composer and pianist Moritz Moszkowski. In his autobiography he wrote: "At the beginning of the 20th century the question of the conceivability of other worlds with modified physics and mathematics will be highly employed." As a young man Alexander Moszkowski moved to Berlin where he met Julius Stettenheim, who noticed his qualities as a writer and hired him for his satirical magazine Berliner Wespen. in which he worked from 1877 until 1886. However, there being many differences between Stettenheim and him, he founded his own satirical magazine, the Lustigen Blätter, which reached large print runs particularly in the Weimar of the time.
He was a personality of the Berliner society, and with celebrities such as Albert Einstein, he was among the first writers to bring the Theory of Relativity to a wider audience.
He died on 26 September 1934 in the city of Berlin, in Germany.