context: Kuusinen continued to work until the end of his life. [1] He was a Member of Parliament until 1972, when he was appointed Honorary President of the SKP. [1] In 1974 Kuusinen traveled to Moscow to receive treatment for his advanced illness. [3] He died there on March 18, 1974 and was buried in Hietaniemi Cemetery in Helsinki. The ashes were sprinkled behind the urn so that Kuusinen did not, as he wished, receive a recognizable tomb. [1]
question: When did Hertta Kuusinen die?
answers.text: March 18, 1974