In 1943, Japan was at war. In 1951, Sister Teresa was sent to Calcutta, then the largest city in India. In 1955, the cancer returned and she died in 1956 at the age of 42. In 1955 the Japan Productivity Center was established. In 1958, Brazil won its first World Cup victory. In 1958, the statue was built in the Hiroshima Peace Park. in 1962 In 1962, Algeria gained independence from France. In 1964, Rev. King won the Nobel Peace Prize. In 1971 the United Kingdom changed its currency to the decimal system. In 1972, Dr. Francine Patterson started to teach sign language to Koko. In 1978 a peace treaty was concluded between Japan and China.