Ararat Plain in the context of "Armenian Highlands"

The Armenian highlands (Armenian: Հայկական լեռնաշխարհ, romanized: Haykakan leṙnašxarh; also known as the Eastern Anatolian highlands, Armenian upland, Armenian plateau, or Armenian tableland) comprise the most central and the highest of the three plateaus that together form the northern sector of West Asia. Clockwise starting from the west, the Armenian highlands are bounded by the Anatolian plateau, the Caucasus, the Kura-Aras lowlands, the Iranian Plateau, and Mesopotamia. The highlands are divided into western and eastern regions, defined by the Ararat Valley where Mount Ararat is located. Since the turn of the 20th century, Western Armenia has been relabeled as "Eastern Anatolia" by Ottoman and Turkish authorities. Eastern Armenia is part of Lesser Caucasus, which was historically known by some as the Anti-Caucasus, meaning "opposite of the Caucasus".

During the Iron Age, the region was known by variations of the name Ararat (Urartu, Uruatri, Urashtu). Later, the Highlands were known as Armenia Major, a central region to the history of Armenians, and one of the four geopolitical regions associated with Armenians, the other three being Armenia Minor, Sophene, and Commagene. The highlands are primarily defined by the geographical dispersal of its native inhabitants, the Armenians. Prior to the appearance of nominally Armenian people in historical records, historians have hypothesized that the region must have been home to various ethnic groups who became homogenous when the Armenian language came to prominence. The population of the Armenian highlands has had a high level of regional genetic continuity for over 6,000 years. Recent studies indicate that the Armenian people descend from the indigenous people of the Armenian highlands and form a distinct genetic isolate in the region. The region was also inhabited during Antiquity by minorities such as Assyrians, Georgians, Greeks, Jews, and Iranians. During the Middle Ages, Arabs and particularly Turkmens and Kurds settled in large numbers in the Armenian highlands.

Yerevan (UK: /ˌjɛrəˈvæn/ YERR-ə-VAN, US: /-ˈvɑːn/, -⁠VAHN; Armenian: Երևան [jɛɾɛˈvɑn] ; sometimes spelled Erevan) is the capital and largest city of Armenia, as well as one of the world's oldest continuously inhabited cities. Situated along the Hrazdan River, Yerevan is the administrative, cultural, and industrial centre of the country, as its primate city. It has been the capital since 1918, the fourteenth in the history of Armenia and the seventh located in or around the Ararat Plain. The city also serves as the seat of the Araratian Pontifical Diocese, which is the largest diocese of the Armenian Apostolic Church and one of the oldest dioceses in the world.

The history of Yerevan dates back to the 8th century BC, with the founding of the fortress of Erebuni in 782 BC by King Argishti I of Urartu at the western extreme of the Ararat Plain. Erebuni was "designed as a great administrative and religious centre, a fully royal capital." By the late ancient Armenian Kingdom, new capital cities were established and Yerevan declined in importance. The city was mostly depopulated by the Great Surgun of 1603–05, when the Safavid Empire forcibly deported hundreds of thousands of Armenians to Iran. In 1679, the city was mostly destroyed by an earthquake, and then rebuilt on a smaller scale. In 1828, Yerevan became part of the Russian Empire, which led to the repatriation of Armenians whose ancestors had been forcibly relocated in the 17th century. After World War I, Yerevan became the capital of the First Republic of Armenia as thousands of survivors of the Armenian genocide in the Ottoman Empire arrived in the area. The city expanded rapidly during the 20th century while Armenia was a part of the Soviet Union. In a few decades, Yerevan was transformed from a provincial town within the Russian Empire to Armenia's principal cultural, artistic, and industrial centre, as well as becoming the seat of national government.

Argišti I, was the sixth known king of Urartu, reigning from 786 BC to 764 BC. He founded the citadel of Erebuni in 782 BC, which is the present capital of Armenia, Yerevan. Alternate transliterations of the name include Argishtis, Argisti, Argišti, and Argishtish. Although the name is usually rendered as Argišti (read: Argishti), some scholars argue that Argisti is the most likely pronunciation. This is due to the belief that the Urartians used the cuneiform symbol š to voice an s-sound, as opposed to representing the digraph sh.

A son and the successor of Menua, he continued the series of conquests initiated by his predecessors, apparently campaigning every year of his reign. He was involved in a number of inconclusive conflicts with the Assyrian king Shalmaneser IV. He conquered the northern part of Syria and made Urartu the most powerful state in post-Hittite Asia Minor. He also expanded his kingdom north to Lake Sevan, conquering much of Diauehi and the Ararat Valley. After an uprising by the inhabitants of the newly conquered regions, Argišti deported them and repopulated the area with subjects from other parts of his empire. In those territories, Argišti built Erebuni Fortress in 782 BC, settling it with 6,600 prisoners of war from Hatti and Supani. He also founded the fortress of Argištiḫinili in 776 BC, on the site of Armavir, the first capital of the later Kingdom of Armenia. Inscriptions belonging to the Urartian king Argišti I were found in Kepenek Castle, located on a hill near Muş.

Mount Aragats (Armenian: Արագած, pronounced [ɑɾɑˈɡɑt͡s]) is an isolated four-peaked volcano massif in Armenia. Its northern summit, at 4,090 m (13,420 ft) above sea level, is the highest point of the Lesser Caucasus and Armenia. It is also one of the highest points in the Armenian Highlands.

The Aragats massif is surrounded by the Kasagh River on the east, the Akhurian River on the west, Ararat Plain on the south, and Shirak Plain on the north. The circumference of the massif is around 200 km (120 mi), and covers an area of 6,000 km (2,300 sq mi) or around 1⁄5 of Armenia's total area. 944 km (364 sq mi) of the massif is located above 2,000 m (6,600 ft).

Khor Virap (Armenian: Խոր Վիրապ, lit. 'deep dungeon') is an Armenian monastery located in the Ararat Plain in Armenia, near the border with Turkey, about 8 kilometres (5.0 mi) south of Artashat, Ararat Province, within the territory of ancient Artaxata. The monastery was host to a theological seminary and was the residence of the Armenian Catholicos.

Khor Virap's notability as a monastery and pilgrimage site is attributed to the fact that Gregory the Illuminator was initially imprisoned here for 13 years by King Tiridates III of Armenia. Saint Gregory subsequently became the king's religious mentor, and they led the proselytizing activity in the country. In the year 301, Armenia was the first country in the world to be declared a Christian nation. A chapel was initially built in 642 at the site of Khor Virap by Nerses III the Builder as a mark of veneration to Saint Gregory. Over the centuries, it was repeatedly rebuilt. In 1662, the larger chapel known as the "St. Astvatsatsin" (Holy Mother of God) was built around the ruins of the old chapel, the monastery, the refectory and the cells of the monks. Regular church services are held in this church. It is one of the most visited pilgrimage sites in Armenia.