Problem: Background: Booth was born in Bel Air, Maryland, into the English American theatrical Booth family. He was the illegitimate son of the famous actor, Junius Brutus Booth, an Englishman, who named Edwin after Edwin Forrest and Thomas Flynn, two of Junius' colleagues. He was the elder brother of John Wilkes Booth, himself a successful actor who gained notoriety as the assassin of President Lincoln. Nora Titone, in her book My Thoughts
Context: Edwin Booth saved Abraham Lincoln's son, Robert, from serious injury or even death. The incident occurred on a train platform in Jersey City, New Jersey. The exact date of the incident is uncertain, but it is believed to have taken place in late 1864 or early 1865. Robert Lincoln recalled the incident in a 1909 letter to Richard Watson Gilder, editor of The Century Magazine.  The incident occurred while a group of passengers were late at night purchasing their sleeping car places from the conductor who stood on the station platform at the entrance of the car. The platform was about the height of the car floor, and there was of course a narrow space between the platform and the car body. There was some crowding, and I happened to be pressed by it against the car body while waiting my turn. In this situation the train began to move, and by the motion I was twisted off my feet, and had dropped somewhat, with feet downward, into the open space, and was personally helpless, when my coat collar was vigorously seized and I was quickly pulled up and out to a secure footing on the platform. Upon turning to thank my rescuer I saw it was Edwin Booth, whose face was of course well known to me, and I expressed my gratitude to him, and in doing so, called him by name.  Booth did not know the identity of the man whose life he had saved until some months later, when he received a letter from a friend, Colonel Adam Badeau, who was an officer on the staff of General Ulysses S. Grant. Badeau had heard the story from Robert Lincoln, who had since joined the Union Army and was also serving on Grant's staff. In the letter, Badeau gave his compliments to Booth for the heroic deed. The fact that he had saved the life of Abraham Lincoln's son was said to have been of some comfort to Edwin Booth following his brother's assassination of the president.
Question: What year was this
Answer: 1864 or early 1865.

Background: The Chimu culture was centered on Chimor with the capital city of Chan Chan, a large adobe city in the Moche Valley of present-day Trujillo, Peru. The culture arose about 900. The Inca emperor Topa Inca Yupanqui led a campaign which conquered the Chimu around 1470. This was just fifty years before the arrival of the Spanish in the region.
Context: The mature Chimu culture developed in roughly the same territory where the Mochica had existed centuries before. The Chimu was also a coastal culture. It was developed in the Moche Valley north of present-day Lima, northeast of Huarmey, and finishing in central present-day Trujillo. Later, it expanded to Arequipa.  The Chimu appeared in the year 900: Chimor, also known as the Kingdom of Chimor, had its capital "at the great site now called Chanchan, between Trujillo and the sea, and we may assume that Taycanamo founded his kingdom there. His son, Guacri-caur, conquered the lower part of the valley and was succeeded by a son named Nancen-pinco who really laid the foundations of the Kingdom by conquering the head of the valley of Chimor and the neighboring valleys of Sana, Pacasmayo, Chicama, Viru, Chao and Santa."  The estimated founding date of the last Chimu kingdom is in the first half of the 14th century. Nacen-pinco was believed to have ruled around 1370 and was followed by seven rulers whose names are not yet known. Minchancaman followed these rulers, and was ruling around the time of the Inca conquest (between 1462 and 1470). This great expansion is believed to have occurred during the late period of Chimu civilization, called: Late Chimu, but the development of the Chimu territory spanned a number of phases and more than a single generation. Nacen-pinco, "may have pushed the imperial frontiers to Jequetepeque and to Santa, but conquest of the entire region was an agglutinative process initiated by earlier rulers." (17)  The Chimu expanded to include a vast area and many different ethnic groups. At its peak, the Chimu advanced to the limits of the desert coast to the valley of the Jequetepeque River in the north. Pampa Grande in the Lambayeque Valley was also ruled by the Chimu.  To the south, they expanded as far as Carabayallo. Their expansion southward was stopped by the military power of the great valley of Lima. Historians and archeologists contest how far south they managed to expand.
Question: Did they have to use force in order to expand?
Answer:
Guacri-caur, conquered the lower part of the valley