Honorius (Latin: Flavius Honorius Augustus; 9 September 384 – 15 August 423), was Western Roman Emperor from 395 to 423. He was the younger son of emperor Theodosius I and his first wife Aelia Flaccilla, and brother of the eastern emperor Arcadius.

Even by the standards of the rapidly declining Western Empire, Honorius' reign was precarious and chaotic. His reign was supported by his principal general, Flavius Stilicho, who was successively Honorius's guardian (during his childhood) and his father-in-law (after the emperor became an adult). Stilicho's generalship helped preserve some level of stability, but with his execution, the Western Roman Empire moved closer to collapse.

After holding the consulate at the age of two, Honorius was declared Augustus by his father Theodosius I, and thus co-ruler, on 23 January 393 after the death of Valentinian II and the usurpation of Eugenius. When Theodosius died, in January 395, Honorius and Arcadius divided the Empire, so that Honorius became Western Roman Emperor at the age of ten.

The Roman emperor was the ruler of the Roman State during the imperial period (starting at about 27 BC). The Romans had no single term for the office although at any given time, a given title was associated with the emperor. If a man was "proclaimed emperor" this normally meant he was proclaimed augustus, or (for generals) imperator (from which English emperor ultimately derives). Several other titles and offices were regularly accumulated by emperors, such as caesar, princeps senatus, consul and Pontifex Maximus. The power of emperors was generally based on the accumulation of powers from republican offices and the support of the army.

Roman emperors refused to be considered "kings", instead claiming to be leaders of a republic, however nominal. The first emperor, Augustus, resolutely refused recognition as a monarch. Although Augustus could claim that his power was authentically Republican, his successor, Tiberius, could not convincingly make the same claim. Nonetheless, the Republican institutional framework (senate, consuls, magistracies etc.) was preserved until the very end of the Western Empire.

3-2-1 Contact is an American science educational television show that aired on PBS from 1980 to 1988, and an adjoining children's magazine. The show, a production of the Children's Television Workshop, teaches scientific principles and their applications. Dr. Edward G. Atkins, who was responsible for much of the scientific content of the show, felt that the TV program wouldn't replace a classroom but would open the viewers to ask questions about the scientific purpose of things.

3-2-1 Contact was the brainchild of Samuel Y. Gibbon, Jr., who had been the executive producer of The Electric Company for CTW from 1971 to 1977. (Gibbon actually left CTW before Contact's production began, though he was still credited as "Senior Consultant.")

The first season of 65 programs began airing January 14, 1980 on select PBS member stations; it featured a cast of three college students who discussed science in an on-campus room known as the Workshop. The first season came to an end on April 11, 1980, but funds for more episodes were not sufficient until 1982.

Herennius Etruscus (Latin: Quintus Herennius Etruscus Messius Decius Augustus; ca. 227 – June 251), was Roman emperor in 251, in a joint rule with his father Decius. Emperor Hostilian was his younger brother.

Herennius was born in near Sirmium in Pannonia (now Sremska Mitrovica, Serbia), during one of his father's military postings. His mother was Herennia Cupressenia Etruscilla, a Roman lady of an important senatorial family. Herennius was very close to his father and accompanied him in 248, as a military tribune, when Decius was appointed by Philip the Arab to deal with the revolt of Pacatianus in the Danube frontier. Decius was successful on defeating this usurper and felt confident to begin a rebellion of his own in the following year. Acclaimed emperor by his own troops, Decius marched into Italy and defeated Philip near modern Verona. In Rome, Herennius was declared heir to the throne and received the title of princeps iuventutis (prince of youth).