Construction began in 1884 under Archbishop Joseph Debs, on a site where Maronite Christians had worshiped since at least 1755. The builders salvaged Roman columns from the temple ruins at Deir El Qalaa in the hilltop village of Beit Mery, embedding millennia of history into the new structure's bones. Italian architect Giuseppe Maggiore designed the Neoclassical facade, and the interior deliberately echoes Rome's Basilica di Santa Maria Maggiore -- a coffered ceiling gilded in gold leaf against beige, walls dressed in marble and stucco, and a canopy on four columns sheltering the main altar. The cathedral was completed and consecrated on Palm Sunday, 1894. For nearly a century, it anchored downtown Beirut's Maronite community, its nave dividing into three aisles separated by two rows of those salvaged Roman columns.

When the Lebanese Civil War erupted in 1975, downtown Beirut became a no-man's-land. The cathedral, situated squarely in the contested center, suffered devastating damage over fifteen years of conflict. Shells cratered its walls. Its interior was wrecked. The building that had taken a decade to construct would require another to rebuild. Post-war rehabilitation began in the 1990s and succeeded in recovering the cathedral's original Renaissance cruciform plan -- a shape that had been altered in a 1954 renovation when engineer Antoun Tabet shortened the transept and added arches. By 1997 the restoration was complete, and in April 2000, Maronite Patriarch Nasrallah Boutros Sfeir presided over the reinauguration. Inside, the chair used by Pope John Paul II during his 1997 pastoral visit to Lebanon sits in the choir alongside the cathedra of the Archbishop of Beirut.

Beneath the cathedral's forecourt, workers uncovering the site for the annex made a discovery that reframed the building's place in history. Archaeological remains spanning centuries emerged from the earth: a Hellenistic structure, fragments of the Roman Decumanus Maximus -- the colonnaded main street that once ran through ancient Berytus -- and an Ottoman-era wall. The finds were preserved in place, creating an archaeological layer cake that mirrors Beirut itself. A single location holding Hellenistic, Roman, Ottoman, and modern Maronite layers captures the essence of a city where every construction project risks disturbing the artifacts of a predecessor civilization.

On August 4, 2020, the massive port explosion that devastated Beirut reached the cathedral with brutal force. Windows shattered. Structural elements cracked. For a building that had already survived one catastrophic chapter and spent years in painstaking restoration, the blast was a cruel echo. Yet the cathedral had been rebuilt before, from worse damage, and the community's response followed the same pattern: assess, mourn, and begin again. The cycle of destruction and reconstruction has become as much a part of the cathedral's identity as its gilded ceiling or Roman columns.

From the air, the relationship between the cathedral's campanile and the Mohammad Al-Amin Mosque's minarets is immediately visible. The blue-domed mosque, completed in 2007, sits directly adjacent to the cathedral, and the two structures share a neighborhood with an intimacy that no zoning plan could manufacture. Archbishop Matar's decision to cap the bell tower at 72 meters -- precisely the height of the mosque's minarets -- was a deliberate architectural conversation. The tower took ten years to complete, not because of engineering challenges but because such gestures require patience. In Beirut, where the civil war divided Christians and Muslims into armed camps, a church tower built to the same height as a mosque minaret says more than any peace agreement could.