When 2481 (1938) Forest Department officials have been invite. People, sharing the national planting day is June 24, for the first time at 2481 is planting the foreign. Which is known as Arbor Day? 2484 (1941) Department of forestry, forestry officials have been ordered to the region continue to be shared with the provincial Committee for the Board of Directors of the district, the national planting day to people the importance of trees and increase natural resources is considered to be the first official planting day. Food and Agriculture Organization 2494 (1951) the United Nations (FAO) has a big decision to member countries held annual national planting Festival, but because the country Thailand has carried out since June 24, which is by protecting 2481 (1938) national day is an annual plant already exists. 2503 (1960) has announced the Prime Minister's Office canceled national day travel May 21, 1960, and the Council of Ministers has approved June 8, 1960, when the annual lent as a tree. 2532 (1989) proposed a Board of the Ministry of agriculture and cooperatives Minister wisakha bucha day is in early may as the beginning of the rainy season in General, should be defined as annual national tree day, the Cabinet had approved the current January 31, 1989, when substitute wisakha bucha day is an annual national tree day.Thanks to the data from the
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