During the First World War, Melba raised large sums for war charities. She returned to Australia frequently during the 20th century, singing in opera and concerts, and had a house built for her near Melbourne. She was active in the teaching of singing at the Melbourne Conservatorium. Melba continued to sing until the last months of her life and made a large number of "farewell" appearances. Her death, in Australia, was news across the English-speaking world, and her funeral was a major national event. The Australian $100 note features her image.