7 (seven) is the natural number following 6 and preceding 8. It is the only prime number preceding a cube.
6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number.
21 (twenty-one) is the natural number following 20 and preceding 22.
In number theory, a deficient number or defective number is a number n for which the sum of divisors of n is less than 2n. Equivalently, it is a number for which the sum of proper divisors is less than n. For example, the proper divisors of 8 are 1, 2, and 4, and their sum is less than 8, so 8 is deficient.
24 (twenty-four) is the natural number following 23 and preceding 25.
89 (eighty-nine) is the natural number following 88 and preceding 90.
36 (thirty-six) is the natural number following 35 and preceding 37.
Apocalyptic literature is a genre of prophetical writing that developed in post-Exilic Jewish culture and was popular among millennialist early Christians. Apocalypse is a Greek word meaning "revelation", "an unveiling or unfolding of things not previously known and which could not be known apart from the unveiling".
Godfrey Giffard was Chancellor of the Exchequer of England, Lord Chancellor of England and Bishop of Worcester.
Qalāwūn aṣ-Ṣāliḥī was the seventh Bahri Mamluk sultan; he ruled Egypt from 1279 to 1290. He was called al-Manṣūr Qalāwūn.
Arghun Khan was the fourth ruler of the Mongol empire's Ilkhanate, from 1284 to 1291. He was the son of Abaqa Khan, and like his father, was a devout Buddhist. He was known for sending several embassies to Europe in an unsuccessful attempt to form a Franco–Mongol alliance against the Muslims in the Holy Land. It was also Arghun who requested a new bride from his great-uncle Kublai Khan. The mission to escort the young Kököchin across Asia to Arghun was reportedly taken by Marco Polo. Arghun died before Kököchin arrived, so she instead married Arghun's son, Ghazan.
777 is the natural number following 776 and preceding 778. The number 777 is significant in numerous religious and political contexts.
616 is the natural number following 615 and preceding 617.
191 is the natural number following 190 and preceding 192.
The Treaty of Birgham, also referred to as the Treaty of Salisbury, comprised two treaties in 1289 and 1290 intended to secure the independence of Scotland after the death of Alexander III of Scotland and accession of his three-year-old granddaughter Margaret, Maid of Norway in 1286. They were negotiated and signed by the Guardians of Scotland, who were ruling in Margaret's name due to her age.
363 is the natural number following 362 and preceding 364.
Rule 30 is an elementary cellular automaton introduced by Stephen Wolfram in 1983. Using Wolfram's classification scheme, Rule 30 is a Class III rule, displaying aperiodic, chaotic behaviour.
1510 is the natural number following 1509 and preceding 1511.
Duchy of Kraków was a duchy in Lesser Poland that existed from 1227 until 1300. Its capital was Kraków. It was formed in 1227 from the Seniorate Province, following the abolishment of the Duchy of Poland. It remained independent until 1300, when it had become a fiefdom within the Kingdom of Poland. In 1320, it was incorporated into the United Kingdom of Poland.
Tous son of Nowzar is a mythological Iranian prince and hero from the Pishdadian dynasty, whose deeds and adventures were told in Ferdowsi's Shahnameh.