June 29, 2003 (May 30, 2003 in the lunar calendar) is the National Science Popularization Action Day. National Science Popularization Action Day June 29 is National Science Popularization Action Day. Since 2003, China Association for Science and Technology has designated June 29 every year as the National Science Popularization Action Day, calling on the national Association for Science and Technology system and science popularization organizations at all levels to actively publicize and implement the "Science and Technology Popularization Law of the People's Republic of China" around June 29 and carry out science popularization activities throughout society. Comments: Popularize scientific knowledge and improve national quality. www.dakepu.net