1st » Louis Brandeis becomes the first Jew appointed to the Supreme Court of the United States called United States Supreme Court.
3rd » The National Defense Act is signed into law, increasing the size of the United States National Guard by 450,000 men.
4th » World War I: Russian Empire Russia opens the Brusilov Offensive with an artillery barrage of Austria-Hungary Austro-Hungarian lines in Galicia (Eastern Europe) Galicia.
5th » Louis Brandeis is sworn in as a Past Justices of the Supreme Court of the United States called Justice of the United States Supreme Court; he is the first History of Jews in the United States named American Jew to hold such a position.
10th » An Arab Revolt against the Ottoman Empire led by T. E. Lawrence or Lawrence of Arabia breaks out.
15th » U.S. President Woodrow Wilson signs a bill incorporating the Boy Scouts of America, making them the only American youth organization with a federal charter.
24th » Mary Pickford becomes the first female film star to sign a million dollar contract.
24th » World War I: the Battle of the Somme begins with a week-long artillery bombardment on the Germany named German Line.
29th » The Irish Nationalism or Irish Nationalist and United Kingdom of Great Britain and Ireland e.g British diplomat Sir Roger Casement is sentenced to death for his part in the Easter Rising.