3233 - Madison, Wisconsin, United States of America

Lise Meitner was a physicist born in Austria-Hungary, but gained Swedish citizenship in 1949. She is responsible for the discovery of protactinium and nuclear fission. Protactinium is a radioactive chemical element (Pa). It reacts with oxygen, water vapor, and inorganic acids.

She discovered protactinium in 1917 while at the Kaiser Wilhelm Institute of Chemistry in Berlin. Meitner and her nephew, Otto Robert Frisch, discovered nuclear fission in 1938.

She was nominated for the Nobel Prize in Chemistry 19 times between 1924 and 1948, and the Nobel Prize for Physics 30 times between 1937 and 1967. In 1944, her collaborator Otto Hahn won the Nobel Prize in Chemistry for nuclear fission. Many scientists called her exclusion unjust.

Chemical element 109 meitnerium was named for her in 1997.

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3227 - Mölln, Schleswig-Holstein, Germany

Mölln is a small city of about 20 000 located in northern Germany. The Elbe-Lübeck Canal flows through the town, and there are eight small lakes that surround the city. It was founded in the 12th century and was a part of the Old Salt Route. Salt that was produced in the salt mines of Lower-Saxony was shipped to the Baltic Sea. Till Eulenspiegel, a legendary trickster known for exposing vices and provoking thought, is said to have lived in Mölln the last year of his life. He apparently died of the plague in 1350, but his existence has never been proven. Mölln has several monuments dedicated to him.

3322 - Hamburg, Germany

Happy birthday to me! What a lovely handmade card from the sender. Beautiful penmanship. Am Rothenbaum is the site of the main court of the German Open Tennis Championships. The International German Open has been played at the Rothernbaum since 1892, making it Germany's longest running tennis tournament. The current stadium was built in 1999 and can hold 13 200 people.

3232 - Manitowoc, Wisconsin, United States of America

The Sturgeon Bay Ship Canal North Pierhead Light was built in 1882. There were nine keepers of the light until 1897. It was redesigned in 1903 and is 12 meters high. The Sturgeon Bay Ship Canal was started in 1872 and wasn't opened for large-scale watercraft until 1890. The canal is 2.1 kilometers long that goes from Sturgeon Bay in Lake Michigan to Green Bay. There are no locks on this canal. The canal was sold to the United States government in 1893 and the U.S. Army Corps of Engineers maintains the canal.

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