Day is held on the last Friday of July for schools and National Tree Day the last Sunday in July throughout Australia. Many states have Arbor Day, although Victoria has an Arbor Week, which was suggested by Premier Rupert (Dick) Hamer in the 1980s. Belgium International Day of Treeplanting is celebrated in Flanders on or around 21 March as a theme-day/educational-day/observance, not as a public holiday. Tree planting is sometimes combined with awareness campaigns of the fight against cancer: Kom Op Tegen Kanker. Brazil The Arbor Day (Dia da Árvore) is celebrated on September 21. It is not a national holiday. However, schools nationwide celebrate this day with environment-related activities, namely tree planting. British Virgin Islands Arbour Day is celebrated on November 22. It is sponsored by the National Parks Trust of the Virgin Islands. Activities include an annual national Arbour Day Poetry Competition and tree planting ceremonies throughout the territory. Cambodia Cambodia celebrates Arbor Day on July 9 with a tree planting ceremony attended by the king. Canada The day was founded by Sir George William Ross, later the premier of Ontario, when he was minister of education in Ontario (1883–1899). According to the Ontario Teachers' Manuals "History of Education" (1915), Ross established both Arbour Day and Empire Day—"the former to give the school children an interest in making and keeping the school grounds attractive, and the latter to inspire the children with a spirit of patriotism" (p. 222). This predates the claimed founding of the day by Don Clark of Schomberg, Ontario for his wife Margret Clark in 1906. In Canada, National Forest Week is the last full week of September, and National Tree Day (Maple Leaf Day) falls on the Wednesday of that week. Ontario celebrates Arbour Week from the last Friday in April to the first Sunday in May. Prince Edward Island celebrates Arbour Day on the third Friday in May during Arbour Week. Arbour Day is the longest running civic greening project in Calgary and is celebrated on the first Thursday in May. On this day, each grade 1 student in Calgary's schools receives a tree seedling to be taken home to be planted on private property. Central African Republic National Tree Planting Day is on July 22. Chile "Dia del Arbol" was celebrated on June 28th 2022, as defined by Chile's Environment Ministry Greater China Taiwan Arbor Day (植樹節) was founded by the forester