Reuters historical calendar - May 12

London, May 11 (Reuters) Following are some of the major events to have occurred on May 12 since 1900: 1926 - Norwegian Roald Amundsen, Italian Umberto Nobile and American Lincoln Ellsworth crossed the North Pole in an airship.

1926 - Jozef Pilsudski led a successful military coup in Poland.

1943 - The German commander in North Africa, General von Arnim, surrendered in World War Two.

1949 - The Russian blockade of Berlin officially ended after 11 months.

REUTERS SRS RN1252