The labarum (Greek: λάβαρον or λάβουρον [2]) was a vexillum (military standard) that displayed the "Chi-Rho" symbol ☧, a christogram formed from the first two Greek letters of the word "Christ" (Greek: ΧΡΙΣΤΟΣ, or Χριστός) – Chi (χ) and Rho (ρ). [3] . It was first used by the Roman emperor Constantine the Great. [4]

Labarum refers to a military standard used in the Roman Empire that was adapted by the Emperor Constantine I as a symbol of Christianity. He combined the first two Greek letters of the word "Christ" (Greek: ΧΡΙΣΤΟΣ, or Χριστός)— Chi (χ) and Rho (ρ), and ordered his soldiers to place this symbol on their shields before a decisive battle.

拉布兰（Labarum， ☧ ）是古代军事符号，由 基督 的 希腊语 首两个 字母 组成（ΧΡΙΣΤΟΣ或Χριστός）－即 χ 和 ρ；由 罗马皇帝 君士坦丁 一世首次使用。 [1] 根据潭修斯（历史学家，曾为君士坦丁一世之子 克里斯 的导师），君士坦丁曾在梦中见到这个符号，又听到一把声音说“In hoc signo vinces”（意即：以此徽号，汝可得胜） 。 醒来后，他下令士兵把徽章画在盾牌上；就在当天，他们与马克森提军队激战，最终胜出这场在罗马外爆发的密尔维桥之战（312年）。 以希腊 …

The labarum—a Christian version of the vexillum, the military standard used earlier in the Roman Empire—incorporated the Chi-Rho, the monogram of Christ, in a golden wreath atop the staff. The flag was made of purple silk (purple dye being at this time a rarity derived from a shellfish of the genus Murex ) richly embroidered with gold.

拉布蘭旗 （Labarum）是指有「凱樂符號」（☧）的 軍旗，該符號由 基督 的 希臘語 首兩個 字母 組成（ΧΡΙΣΤΟΣ或Χριστός）－即 χ 和 ρ [註 1]；由 羅馬皇帝 君士坦丁一世 首次使用。 Labarum一詞來源不詳，有指是由 拉丁語 labāre 而來，意指「搖晃、搖曳」，表示旗幟飄揚；亦有指是來自 凯尔特语族 的 llafar （意為「雄辯的」或「富於表現的」)，或拉丁語 laureum [vexillum] （即「月桂/桂冠 [軍旗]」） [1]。 根據 拉克坦提烏斯 （歷史學家，曾為君士坦丁一世之子克里斯的導 …

2012年2月7日 · The Labarum (Greek: λάβαρον / láboron) was a Christian imperial standard incorporating the sacred "Chi-Rho" Christogram, which was one of the earliest forms of christogram used by Christians, becoming one of the most familiar and widely used emblems in Chrisitan tradition.

首先是拉布兰旗（labarum），这个旗帜的词源说法很多。 最早使用其实会追溯到帝国早期，但是君士坦丁大帝对它的修改是最为著名的，他在旗帜上使用了“凯乐”（Chi-Rho）符号，象征着耶稣基督。

LABARUM. The name given to the banner of Emperor constantine i, an adaptation of the Roman cavalry standard (vexillum) with the pagan emblems replaced by Christian symbols. After his victory at the Milvian bridge (313), Constantine made the labarum the imperial flag of the western Empire, and from 324, for the entire Roman Empire.

Labarum the name by which the military standard adopted by Constantine the Great after his celebrated vision (Lactatius, “De mortibus persecutorum”, c. xliv), was known in antiquity. The original labarum, designed under the emperor’s direction on the day subsequent to the appearance of the “cross of light”, is described by Eusebius ...

Labarum is the name by which the military standard adopted by Constantine the Great after his celebrated vision (Lactantius, "De mortibus persecutorum", 44), was known in antiquity. The original labarum, designed under the emperor's direction on the day subsequent to the appearance of the "cross of light", is described by Eusebius (Vita ...