Jean Jaurès in the context of "Paris Conservatoire"

The Socialist International, commonly known as the Second International, was a political international of socialist and labour parties formed in Paris on 14 July 1889. At a time of growing industrial working-class movements and the expansion of suffrage, it brought together autonomous national parties into a loose international federation. It continued the work of the First International (1864–1876), from which it inherited both the legacy of Karl Marx and the conflict with anarchists. The organization was dominated by the powerful Social Democratic Party of Germany (SPD), whose organizational and theoretical leadership heavily influenced the other member parties.

The International established the annual celebration of International Workers' Day on 1 May and popularised the demand for an eight-hour day. Its early congresses were preoccupied with expelling anarchists and defining its mission as one based on parliamentary political action. After 1900, the International was increasingly confronted with the internal divisions of the socialist movement, particularly the rise of revisionism in Germany and the debate over socialist participation in "bourgeois" governments, sparked by the Millerand affair in France. The 1904 Amsterdam Congress, which saw a major debate between French socialist Jean Jaurès and German leader August Bebel, condemned revisionism and ministerialism, marking the highest point in the influence of the International.

The French Section of the Workers' International (French: Section française de l'Internationale ouvrière, SFIO) was a major socialist political party in France which was founded in 1905 and succeeded in 1969 by the present Socialist Party.

The SFIO was founded in 1905 as the French representative to the Second International, merging the Marxist Socialist Party of France led by Jules Guesde and the social-democratic French Socialist Party led by Jean Jaurès, who became the SFIO's leading figure. Electoral support for the party rose from 10 percent in the 1906 election to 17 percent in 1914, and during World War I it participated in France's national unity government, sacrificing its ideals of internationalist class struggle in favor of national patriotism, as did most other members of the Second International. In 1920, the SFIO split over views on the 1917 Russian Revolution; the majority became the French Communist Party, while the minority continued as the SFIO.

Capital punishment in France (French: peine de mort en France) is banned by Article 66-1 of the Constitution of the French Republic, voted as a constitutional amendment by the Congress of the French Parliament on 19 February 2007 and simply stating "No one can be sentenced to the death penalty" (French: Nul ne peut être condamné à la peine de mort). The death penalty was already declared illegal on 9 October 1981 when President François Mitterrand signed a law prohibiting the judicial system from using it and commuting the sentences of the seven people on death row to life imprisonment. The last execution took place by guillotine, being the main legal method since the French Revolution; Hamida Djandoubi, a Tunisian citizen convicted of torture and murder on French soil, was put to death in September 1977 in Marseille.

Major French death penalty abolitionists across time have included philosopher Voltaire; poet Victor Hugo; politicians Léon Gambetta, Jean Jaurès and Aristide Briand; and writers Alphonse de Lamartine and Albert Camus.