The French Third Republic (French: La Troisième République, sometimes written as La III^e République) was the republican government of France from 1870, when the Second French Empire collapsed, to 1940, when it was replaced by the Vichy France government after defeat by Germany in World War II.

The early days of the Third Republic were dominated by the Franco-Prussian War, which the Republic continued to wage after the fall of the Emperor. Harsh reparations exacted by the Prussians after the war resulted in the loss of Alsace-Lorraine, social upheaval, and the establishment of the Paris Commune. Early governments of the Third Republic considered re-establishing the monarchy, but confusion of the nature of that monarchy, and who among the various deposed royal families would be awarded the throne caused those talks to stall and made the Third Republic, originally intended to be a transitional government, become the permanent government of France.

Poland ⁱ/ˈpoʊlənd/ (Polish: Polska), officially the Republic of Poland (Polish: Rzeczpospolita Polska; Kashubian: Pòlskô Repùblika; Silesian: Polsko Republika), is a country in Central Europe, bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north. The total area of Poland is 312,679 square kilometres (120,726 sq mi), making it the 69th largest country in the world and the 9th largest in Europe. Poland has a population of over 38 million people, which makes it the 34th most populous country in the world and the sixth most populous member of the European Union, being its most populous post-communist member. Poland is a unitary state made up of 16 voivodeships. Poland is a member of the European Union, NATO, the United Nations, the World Trade Organization, the Organisation for Economic Co-operation and Development (OECD), European Economic Area, International Energy Agency, Council of Europe, Organization for Security and Co-operation in Europe, International Atomic Energy Agency, G6, Council of the Baltic Sea States, Visegrád Group, Weimar Triangle and Schengen Agreement.

Enrico Caruso (Italian pronunciation: [enˈriːko kaˈruːzo]) (February 25, 1873 – August 2, 1921) was an Italian tenor. He sang to great acclaim at the major opera houses of Europe and North and South America, appearing in a wide variety of roles from the Italian and French repertoires that ranged from the lyric to the dramatic. Caruso also made approximately 290 commercially released recordings from 1902 to 1920. All of these recordings, which span most of his stage career, are available today on CDs and as digital downloads.

Caruso's 1904 recording of "Vesti la giubba" from Leoncavallo's opera Pagliacci was the first sound recording to sell a million copies.

Caruso's 25-year career, stretching from 1895 to 1920, included 863 appearances at the New York Metropolitan Opera before he died from an infection at the age of 48. His fame has lasted to the present day despite the limited marketing and promotional vehicles available during Caruso's era. (He was, nonetheless, a client of Edward Bernays, during the latter's tenure as a press agent in the United States.) Publicity in Caruso's time relied on newspapers, particularly wire services, along with magazines, photography and relatively instantaneous communication via the telephone and the telegraph, to spread a message and raise a performer's profile.

World War I (WWI), which was predominantly called the World War or the Great War from its occurrence until 1939 (World War II), and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918. It involved all the world's great powers, which were assembled in two opposing alliances: the Allies (based on the Triple Entente of the United Kingdom, France and Russia) and the Central Powers (originally centred around the Triple Alliance of Germany, Austria-Hungary and Italy; but, as Austria–Hungary had taken the offensive against the agreement, Italy did not enter into the war). These alliances both reorganised (Italy fought for the Allies), and expanded as more nations entered the war. Ultimately more than 70 million military personnel, including 60 million Europeans, were mobilised in one of the largest wars in history. More than 9 million combatants were killed, largely because of enormous increases in lethality of weapons, thanks to new technology, without corresponding improvements in protection or mobility. It was the sixth-deadliest conflict in world history, subsequently paving the way for various political changes such as revolutions in the nations involved.