The 8th Walden Symposium was held on May 13-14, 2013 and it was dedicated to the 150th birth anniversary of Paul Walden.
Latvijas Pasts issued a new postage stamp and a cover to mark the 150th birthday of Paul Walden – one of the world’s most outstanding scientist of Latvian origin. The first cover took place at the Faculty of Materials Science and Applied Chemistry of Riga Technical University on May 14, 2013.
