1) The world's oldest living plant is believed to be a clonal shrub called "Old Tjikko" in Sweden, estimated to be over 9,500 years old.

2) The Berlin Conference in 1884-1885 divided Africa among European powers and set the stage for the colonization of the continent.

3) The first sound film, "The Jazz Singer," was released in 1927 and marked the transition from silent movies to "talkies."

4) The national animal of Australia is the kangaroo.