Hippocrates gave the first written account around 300 BC when he recorded 12 cases of women with the disorder. Mary I (1516–1558), Queen of England, was suspected to have had two phantom pregnancies, but this is strongly disputed; some historians believe that the queen's physicians mistook fibroid tumors in her uterus for a pregnancy, while others suspect either a molar pregnancy (proceeding to choriocarcinoma) or ovarian cancer was to blame. John Mason Good coined the term pseudocyesis from the Greek words pseudes (false) and kyesis (pregnancy) in 1823.