At the time of his death, in 1950, Schumpeter was working on a new book, History of Economic Analysis. In the book, Schumpeter attempts a complete history of the field of economics, from ancient Greece to the present day (the end of World War II). Not just limited to economics, the book also traced the history of political and philosophical ideas and served as a record of significant events. Although never fully completed, History of Economic Analysis has gained recognition as an important work, due to its broad scope and original examination of significant historical events. Some notable topics it addresses include the techniques of economic analysis, contemporaneous developments in other sciences, and the sociology of economics.