The collation of all known variants of a text is referred to as a variorum, namely a work of textual criticism whereby all variations and emendations are set side by side so that a reader can track how textual decisions have been made in the preparation of a text for publication. The Bible and the works of William Shakespeare have often been the subjects of variorum editions, although the same techniques have been applied with less frequency to many other works, such as Walt Whitman's Leaves of Grass, and the prose writings of Edward Fitzgerald.
What is a variorum?
The collation of all known variants of a text

But after emancipation, a sense of a unified French Jewry emerged, especially when France was wracked by the Dreyfus affair in the 1890s. In the 1920s and 1930s, Ashkenazi Jews from Europe arrived in large numbers as refugees from antisemitism, the Russian revolution, and the economic turmoil of the Great Depression. By the 1930s, Paris had a vibrant Yiddish culture, and many Jews were involved in diverse political movements. After the Vichy years and the Holocaust, the French Jewish population was augmented once again, first by Ashkenazi refugees from Central Europe, and later by Sephardi immigrants and refugees from North Africa, many of them francophone.
When did the Dreyfus affair occur?
1890s

The Ottoman Navy vastly contributed to the expansion of the Empire's territories on the European continent. It initiated the conquest of North Africa, with the addition of Algeria and Egypt to the Ottoman Empire in 1517. Starting with the loss of Greece in 1821 and Algeria in 1830, Ottoman naval power and control over the Empire's distant overseas territories began to decline. Sultan Abdulaziz (reigned 18611876) attempted to reestablish a strong Ottoman navy, building the largest fleet after those of Britain and France. The shipyard at Barrow, England, built its first submarine in 1886 for the Ottoman Empire.
In what year did the Ottoman empire lose Greece?
1821