Dusty Phrases

Hi! Welcome to “Dusty Phrases.” You will find below an ancient phrase in one language or another, along with its English translation. You may also find the power to inspire your friends or provoke dread among your enemies.

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Greek:

ἐν τούτῳ νίκα

Latin:

In hoc signo vinces

English:

In this sign thou shalt conquer


This is arguably the most geopolitically important Latin phrase of all time. It’s definitely one of the most famous ancient Latin phrases. The interesting thing is that it was originally delivered in Greek. However, as Latin was the language of the Roman Empire, the Latin translation became better known.

The phrase is associated with the transition of the Roman Empire away from the Roman pantheon to Christianity.

(via wiki)

In hoc signo vinces” is a Latin phrase conventionally translated into English as “In this sign thou shalt conquer”, often also being translated as “By and/or in this sign, conquer”.

The Latin phrase itself renders, rather loosely, the Greek phrase “ἐν τούτῳ νίκα”, transliterated as “en toútōi níka“, literally meaning “in this, conquer”.

History

Lucius Caecilius Firmianus Lactantius was an early Christian author (c. 240 – c. 320) who became an advisor to the first Christian Roman emperor, Constantine I (and tutor to his son), guiding the Emperor’s religious policy as it developed during his reign. His work De Mortibus Persecutorum has an apologetic character, but has been treated as a work of history by Christian writers. Here Lactantius preserves the story of Constantine’s vision of the Chi Rho before his conversion to Christianity. The full text is found in only one manuscript, which bears the title, Lucii Caecilii liber ad Donatum Confessorem de Mortibus Persecutorum.

The bishop Eusebius of Caesaria, a historian, states that Constantine was marching with his army (Eusebius does not specify the actual location of the event, but it is clearly not in the camp at Rome), when he looked up to the sun and saw a cross of light above it, and with it the Greek words “(ἐντούτῳ νίκα” (“In this, conquer”), a phrase often rendered into Latin as in hoc signo vinces (“in this sign, you will conquer”).

At first, Constantine did not know the meaning of the apparition, but on the following night, he had a dream in which Christ explained to him that he should use the sign of the cross against his enemies. Eusebius then continues to describe the Labarum, the military standard used by Constantine in his later wars against Licinius, showing the Chi-Rho sign. The accounts by Lactantius and Eusebius, though not entirely consistent, have been connected to the Battle of the Milvian Bridge (312 AD), merging into a popular notion of Constantine seeing the Chi-Rho sign on the evening before the battle.

The phrase appears prominently placed as a motto on a ribbon unfurled with a passion cross to its left, beneath a window over the Scala Regia, adjacent to the equestrian statue of Emperor Constantine, in the Vatican. Emperors and other monarchs, having paid respects to the Pope, descended the Scala Regia, and would observe the light shining down through the window, with the motto, reminiscent of Constantine’s vision, and be reminded to follow the Cross.

Ceiling of the Church of Saint Anthony of the Portuguese, in Rome, depicting the Miracle at the Battle of Ourique.

The Kingdom of Portugal had used this motto since 1139, after the Miracle at the Battle of Ourique, when the first portuguese king D. Afonso Henriques, before his battle against the moorish King Ali ibn Yusuf, experienced a similar miracle to Constantine’s. The miracle was later famously retold through the written epic poem the Lusíadas.

The Chi-Rho symbol ☧, Catacombs of San Callisto, Rome.
Monogramme of Christ (the Chi Rho) on a plaque of a sarcophagus, 4th-century AD, marble, Musei Vaticani, on display in a temporary exhibition at the Colosseum in Rome, Italy
Reconstruction of Chi-Rho fresco from Roman villa at Lullingstone, including Alpha and Omega.

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