Einstein lived in Bern from February 1902 until October 1909. After several moves within Bern he lived in Kramgasse 49 on the second floor with his wife Mileva Maric and his first son Hans Albert from October 1903 until May 1905. In this flat which wasn’t only the birthplace of his son Hans Albert Einstein worked on his special theory of relativity. Today a commemorative plaque on the outer façade of the house reminds of this great scientific performance.
