Problem: Background: The Birth of a Nation (originally called The Clansman) is a 1915 American silent epic drama film directed and co-produced by D. W. Griffith and starring Lillian Gish. The screenplay is adapted from the novel and play The Clansman, both by Thomas Dixon Jr., as well as Dixon's novel The Leopard's Spots. Griffith co-wrote the screenplay with Frank E. Woods, and co-produced the film with Harry Aitken. It was released on February 8, 1915.
Context: Thomas Dixon, Jr. was a former classmate of then-president Woodrow Wilson at Johns Hopkins University. Dixon arranged a screening of The Birth of a Nation at the White House for Wilson, members of his cabinet, and their families, in one of the first ever screenings at the White House. Wilson was falsely reported to have said of the film, "It is like writing history with lightning. And my only regret is that it is all so terribly true". Wilson's aide, Joseph Tumulty, denied the claims and said that "the President was entirely unaware of the nature of the play before it was presented and at no time has expressed his approbation of it." Historians believe the quote attributed to Wilson originated with Dixon, who was relentless in publicizing the film. After controversy over the film had grown, Wilson wrote that he disapproved of the "unfortunate production". Besides having the film screened at the White House, Dixon persuaded all nine justices of the Supreme Count to attend a screening of The Birth of a Nation as well as many members of Congress. With the help of the Navy Secretary, Josephus Daniels, Dixon was able to meet the Chief Justice of the Supreme Court, Edward Douglass White. Initially Justice White was not interested in seeing the film, but when Dixon told him it was the "true story" of Reconstruction and the Klan's role in "saving the South", White, recalling his youth in Louisiana, jumped to attention and said: "I was a member of the Klan, sir". With White agreeing to see the film, the rest of the Supreme Court followed. Dixon was clearly rattled and upset by criticism by African-Americans that the film version of his books was projecting hatred against them, and wanted the endorsement of many powerful men as possible to offset such criticism. Dixon always vehemently denied having anti-black prejudices--despite the way his books promoted white supremacy--and stated: "My books are hard reading for a Negro, and yet the Negroes, in denouncing them, are unwittingly denouncing one of their greatest friends". In a letter sent on May 1, 1915, to Joseph P. Tumulty, the press secretary to President Wilson, Dixon wrote: "The real purpose of my film was to revolutionize Northern sentiments by a presentation of history that would transform every man in the audience into a good Democrat...Every man who comes out of the theater is a Southern partisan for life!" In a letter to President Wilson sent on September 5, 1915, Dixon boasted: "This play is transforming the entire population of the North and the West into sympathetic Southern voters. There will never be an issue of your segregation policy". Dixon was alluding to the fact that Wilson upon becoming president in 1913 had imposed segregation on federal workplaces in Washington D.C. while reducing the number of black employees through demotion or dismissal.
Question: why was he approbation about?
Answer: criticism by African-Americans that the film version of his books was projecting hatred against them,

Background: Legion (David Charles Haller) is a fictional superhero appearing in American comic books published by Marvel Comics. He is the mutant son of Professor Charles Xavier and Gabrielle Haller. Legion takes the role of an antihero who has a severe mental illness including a form of dissociative identity disorder, in which each of his alternate personas controls one of his many superpowers. The television series Legion premiered on FX network in 2017.
Context: When Mystique tracked down David years later to get revenge for "his" murder of Destiny, he awakened with his fractured mind healed. David had a new goal, to help his father realize his dream of human-mutant coexistence by killing Magneto, Xavier's greatest opponent, before he had a chance to amass power. He traveled twenty years into the past, when Xavier and Magneto were orderlies at the mental hospital. In the process, he loses his memory. Magneto then accidentally triggers his memory, causing David to go on a rampage, attacking Magneto and revealing the existence of mutants to the public decades too early. Several X-Men who were pulled back in time with him were unable to prevent him from attacking Magneto. Xavier, however, leaped into the path of the psi-knife (the focused totality of Legion's psionic powers) and was killed in Magneto's place, causing the formation of the Age of Apocalypse timeline. Due to being trapped in the past by David's actions, Bishop enlisted the aid of the new reality's X-Men to travel back in time to confront Legion again. Bishop seized Legion's psi-blade and drove it into his own chest, allowing Legion to see the future that he caused. In his last moments, David apologized for what he did. David's mother, Gabrielle Haller, described having a "maternal loss" afterward, implying she miscarried before giving birth to David. While David was considered deceased, some of his alternate personalities remained trapped between life and death, manifesting as spirits. When the spirits started terrorizing Israel, Excalibur was called to stop them. After learning that the spirits were refusing death, Meggan used her empathy to calm their rage, convincing them to go "towards the light."
Question: What is the Age of Apocalypse?
Answer:
was killed in Magneto's place, causing the formation of the Age of Apocalypse timeline.