Answer: 18 September
Notes: September 18th is celebrated as World Bamboo Day each year. The World Bamboo Organization established this day in 2009, founded by Kamesh Salam. The organization's headquarters were in Antwerp, Belgium. The 8th World Bamboo Congress, held in Bangkok on September 18, 2009, officially recognized World Bamboo Day. The day aims to protect natural resources and encourage bamboo cultivation for new industries globally.
