On June 20, 1900 – German ambassador Clemens von Ketteler was killed by Chinese soldiers in Beijing . This event became a reason for sending a European expeditionary corps to China.
June 1, 1804 was born the great Russian composer Mikhail Ivanovich Glinka.
In 1915 the Young Turk authorities organized mass killings of the Armenian population of the Ottoman Empire.
When the workers of all countries unite for the common cause of a creating a society where the capitalists and owners of the means of production do not control the lives and destinies of the 99% of human beings in the world, any such unity in Marx