- The use of the poppy was inspired by the World War I poem "In Flanders Fields" by Lt Col John McCrae. Its opening lines refer to the many poppies that were the first flowers to grow on soldiers' graves
- In 1918, American Christian worker Moina Michael, inspired by the poem, published "We Shall Keep the Faith". She vowed to always wear a poppy and began distributing them at conferences
- Until 1996, poppies were made by disabled veterans in Canada, but have since been made by a private contractor
- A team of about 50 people - most of them disabled former British military personnel - work all year making millions of poppies at the Poppy Factory in Richmond
- To commemorate animal victims of war, Animal Aid has issued a purple poppy, which can be worn alongside the traditional red one
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Poppies installed at the Tower of London to commemorate WWI last year have now been used in a sculpture at Yorkshire Sculpture Park.