Yes, Albert Einstein kept a series of personal and scientific journals throughout his life. These journals, often referred to as the "Einstein Papers," contain his thoughts, musings, calculations, and scientific ideas. They provide valuable insights into his thought processes and the development of his theories.
Einstein's journals cover a wide range of topics, including his work on the theory of relativity, quantum mechanics, cosmology, and his philosophical reflections. They also contain discussions on various scientific and mathematical problems he encountered, as well as correspondence with other scientists and colleagues.
After Einstein's death in 1955, many of his personal papers, including his journals, were preserved and made available to researchers. The Einstein Papers Project, initiated in the 1980s, is an ongoing effort to collect, catalog, and publish the complete works of Albert Einstein, including his journals, letters, scientific manuscripts, and other documents.
These journals are valuable resources for historians, physicists, and anyone interested in gaining deeper insights into Einstein's thinking and the development of his scientific ideas. They shed light on his intellectual journey and provide a glimpse into the mind of one of the most influential scientists in history.