Fix typo reported via mailbox

short-history/short-history.xml

@@ -2159,7 +2159,7 @@
                         </figure> Soviet Premier <persName>Nikita Khrushchev</persName> saw an
                         opportunity to strengthen the relationship between the Soviet Union and
                             <persName>Fidel Castro</persName>’s Cuba and make good its promise to
-                        defend Cuba from the United States. In May 1960, Khrushchev began to ship
+                        defend Cuba from the United States. In May 1962, Khrushchev began to ship
                         ballistic missiles to Cuba and technicians to operate them. He believed that
                         President Kennedy was weak and would not react to the Soviet move.</p>
                     <p>After extensive consultation with his foreign policy and military advisers,