Caesar Baronius

The Dark Ages is a term, now deprecated by most historians, for the Early Middle Ages (c. 5th–10th centuries), or occasionally the entire Middle Ages (c. 5th–15th centuries), in Western Europe after the fall of the Western Roman Empire, which characterises it as marked by economic, intellectual, and cultural decline.

The concept of a "Dark Age" as a historiographical periodization originated in the 1330s with the Italian scholar Petrarch, who regarded the post-Roman centuries as "dark" compared to the "light" of classical antiquity. The term employs traditional light-versus-darkness imagery to contrast the era's supposed darkness (ignorance and error) with earlier and later periods of light (knowledge and understanding). The phrase Dark Age(s) itself derives from the Latin saeculum obscurum, originally applied by Caesar Baronius in 1602 when he referred to a tumultuous period in the 10th and 11th centuries. The concept thus came to characterize the entire Middle Ages as a time of intellectual darkness in Europe between the fall of Rome and the Renaissance, and became especially popular during the 18th-century Age of Enlightenment. Others, however, have used the term to denote the relative scarcity of written records regarding at least the early part of the Middle Ages.

The 10th century was the period from 901 (represented by the Roman numerals CMI) through 1000 (M) in accordance with the Julian calendar, and the last century of the 1st millennium.

In China, the Song dynasty was established, with most of China reuniting after the fall of the Tang dynasty and the following Five Dynasties and Ten Kingdoms period. The Muslim World experienced a cultural zenith, especially in al-Andalus under the Caliphate of Córdoba and in the Samanid Empire under Ismail Samani. The Abbasid Caliphate continued to exist but with reduced central authority. Additionally, there was a cultural flourishing for the Byzantine Empire, which also reconquered some lost territories, and the First Bulgarian Empire, as well as the Holy Roman Empire during the Ottonian Renaissance. The historian Lynn White mentions of the period that "to the modern eye, it is very nearly the darkest of the Dark Ages ... if it was dark, it was the darkness of the womb". Caesar Baronius described it as the Iron Century, because it was 'iron in its harshness and in its sterility of goodness', while Lorenzo Valla gave it the similar name "Age of Lead and Iron".

Annales Ecclesiastici (full title Annales ecclesiastici a Christo nato ad annum 1198; "Ecclesiastical annals from Christ's nativity to 1198"), consisting of twelve folio volumes, is a history of the first 12 centuries of the Christian Church, written by Caesar Baronius and Odorico Raynaldi and published between 1588 and 1607.

Creator Omnium was a papal bull issued by Pope Eugene IV on 17 December 1434 that condemned the enslavement of the inhabitants of the Canary Islands and ordered, under pain of excommunication, that all such slaves be set free within 15 days of its publication.

The bull is also known as Sicut Dudum with the date of 13 January 1435, a title that is the incipit of the third paragraph of Creator Omnium, echoing the abbreviated version reported by Cardinal Cesare Baronius in his Annales Ecclesiastici.