In 2009, the Anne Frank Center USA launched a national initiative called the Sapling Project, planting saplings from a 170-year-old chestnut tree that Anne had long loved (as denoted in her diary) at 11 different sites nationwide. In more recent news, the Anne Frank House lost a lawsuit to the Anne Frank Fonds in June 2013, after the Fonds sued the House for the return of documents linked to Anne and Otto Frank. Her work, The Diary of Anne Frank, has gone on to be read by millions.