Knossos is the largest Bronze Age site on Crete and the centre of the Minoan civilisation, a palace-city on Kephala hill in the Kairatos valley about 5 km south of central Heraklion. People settled the hill around 7000 BC; the first palace went up around 1900 BC, was rebuilt after a destruction around 1700 BC, and its final major destruction is conventionally dated to about 1350 BC. What visitors see today was dug mainly by the British archaeologist Arthur Evans from 1900, after a first excavation by the Cretan merchant Minos Kalokairinos in 1878, and much of it was rebuilt by Evans in reinforced concrete. In 2025 UNESCO inscribed Knossos as part of the World Heritage Site "Minoan Palatial Centres", together with five other Cretan sites.
Almost everything known about Knossos depends on how and when it was dug, so the story below follows the excavators first.
Minos Kalokairinos Opens the West Wing, 1878
The first person to put a spade into the palace was a local. Minos Kalokairinos (1843–1907) came from a Heraklion family of landowners and soap manufacturers; his father had owned land on the palace site. In 1878 and 1879 he dug on Kephala hill for several weeks and exposed parts of the west wing, including storage magazines still lined with huge clay jars, or pithoi, and a corner of what would later be called the Throne Room.
Crete was then an Ottoman province, and the authorities halted the work within weeks. News of the finds still spread: the journalist William James Stillman, Heinrich Schliemann, the excavator of Troy and Mycenae, and eventually Arthur Evans all took an interest. Kalokairinos's home in Heraklion was pillaged and burned on 25 August 1898 during the violence of the Cretan revolt, and most of his collection was damaged. Only the rarest pieces, kept separately, survived; he later gave them, mostly jars from the west wing, to museums in Greece, Paris and London.
Arthur Evans Buys a Hill, 1894–1900
Arthur Evans (1851–1941), who ran the Ashmolean Museum in Oxford, came to Crete in 1894 chasing a script. He had bought engraved seal stones in Athens that were said to come from the island, and on his first look at the Knossos diggings he spotted the double-axe sign almost at once. His friend and adviser Federico Halbherr, the Italian archaeologist who began digging the Minoan palace at Phaistos before Evans started at Knossos, was already working on the island. Evans set up the Cretan Exploration Fund to buy the land, because the owners would sell to a fund but not to an individual; for a time Evans was its only contributor. He first bought a quarter of the site with an option on the rest.
When Crete gained autonomy from the Ottoman Empire and excavation permits were reissued, Evans already held the land. In March 1900 he began work with two foremen and 32 diggers, assisted by the archaeologist Duncan Mackenzie and the architect Theodore Fyfe, later joined by Christian Doll and others. Within months they had uncovered a large part of what Evans named the Palace of Minos, a complex of more than 1,000 interlocking rooms covering about 20,000 m². He named the civilisation that built it "Minoan," after the mythical King Minos, and published his account as The Palace of Minos between 1921 and 1935.
Concrete Columns and Evans's Reconstructions
Evans did not just excavate; he rebuilt. Working with his architects, he restored upper storeys, staircases, porticoes and colonnades in reinforced concrete, added colour, and put replica frescoes back on the walls. The upside is that Knossos is easy to read: Minoan columns, which were wooden, set on stone bases and taper downwards, unlike later Greek ones, are recognisable at a glance because Evans recreated them.
The downside is that it is hard to know where the Bronze Age stops and 1920s guesswork begins. Critics have long argued that parts of the reconstruction go beyond what the excavated evidence supports, and some familiar fresco compositions combine small ancient fragments with large modern additions. The concrete is now itself a century old and needs constant monitoring, so conservators today care for two layers of history at once: the Minoan ruin and Evans's interpretation of it.
The North Entrance, with its rebuilt portico and red tapering columns, shows the method best. So does the Throne Room, where Evans found a gypsum seat set against the wall, stone benches, a sunken "lustral basin" and painted griffins, and decided it was the throne room of King Minos. Later scholars have suggested it may have served a priestly or ritual purpose instead, and its function remains debated.
Two Palaces Between 1900 and 1350 BC
Underneath the reconstructions lies a long sequence. The first farmers on Kephala hill, around 7000 BC, made Knossos one of the earliest permanent settlements in the Aegean, and many archaeologists call it Europe's oldest city. During the Prepalatial period, roughly 3000 to 1900 BC, the town grew and earlier buildings on the summit were levelled to form a platform. The first palace, around 1900 BC, worked as a centre for storage, redistribution, ritual and crafts, run by officials who used seals and writing.
Around 1700 BC that palace was destroyed, probably by an earthquake or a series of them, and rebuilt on a larger scale. The Second Palace period, from about 1700 to 1450 BC, was Knossos at its height: a central court, monumental entrances, light wells that carried daylight and air deep into the building, drains and a water supply, and walls covered in paintings. The surrounding town spread over about 1.5 km², with buildings such as the Small Palace and the Royal Villa, and a paved Royal Road. Around 1450 BC, during wider destruction across Minoan Crete, the palace was damaged, and afterwards it was run under strong Mycenaean Greek influence. A great fire, conventionally dated to about 1350 BC, ended the palace, although the exact date of its final destruction is still argued over. A 14th-century BC list of Aegean place names at the mortuary temple of the Egyptian pharaoh Amenhotep III at Kom el-Hetan includes a name generally read as Knossos, possibly part of the itinerary of an Egyptian voyage to the Aegean. The town lived on; in Roman times it became the colony of Colonia Iulia Nobilis Cnossus.
Linear A, Linear B and the 1952 Decipherment
Evans went to Crete looking for writing, and Knossos gave him three scripts. The earliest Minoan administrators used Cretan hieroglyphs and Linear A, which UNESCO counts among the first writing systems in Europe; both remain undeciphered. After the Mycenaean takeover, the palace produced a large archive of clay tablets in a third script, Linear B, and Evans's team recovered thousands of them.
The tablets record livestock, textiles, land, personnel, offerings and stored goods. The oldest are probably those from the Room of the Chariot Tablets, from the second half of the 15th century BC, and scholars have identified the handwriting of 66 different scribes at Knossos. In 1952 the English architect Michael Ventris, building on the work of the American classicist Alice Kober, showed that Linear B wrote an early form of Greek; he and John Chadwick then worked out the sign values. The result changed the story of the palace's last century: by then, the people keeping its books spoke Greek.
The Labyrinth Myth and the Bull-Leaping Fresco
Greek myth placed King Minos, son of Zeus and Europa, at Knossos. He had the craftsman Daedalus build the Labyrinth to hold the Minotaur, half man and half bull, until the Athenian hero Theseus killed it with the help of Minos's daughter Ariadne and her thread. Knossos itself kept the story alive, stamping a labyrinth on its coins in the Classical period. Some scholars link the word "labyrinth" with the labrys, the double axe, though the idea is disputed. The palace's maze of courts, corridors and stairs on several levels probably helped fix the legend.
Bulls certainly mattered to the people who lived there. The Bull-Leaping Fresco, now in the Heraklion Archaeological Museum with most of the site's major finds, shows athletes vaulting over a charging bull. Other paintings include the Procession Fresco, the Cup-Bearer, the Dolphin Fresco and the figure known as the Prince of the Lilies, all restored from fragments to differing degrees. The museum also holds the snake goddess figurines, among the best-known objects of Minoan religion.
UNESCO's Minoan Palatial Centres, 2025
Knossos waited a long time for World Heritage status. In 2025 it was inscribed as part of a serial site, the Minoan Palatial Centres, alongside Phaistos, Malia, Zakros, Zominthos and Kydonia, under criteria ii, iii, iv and vi. The listing recognises the palaces' early urban planning, monumental architecture, writing systems, sea trade and lasting influence on myth. Research has also moved beyond the palace: the Knossos Urban Landscape Project, run by the British School at Athens with the Greek Archaeological Service, surveyed about 11 km² around the site and traced occupation from about 7000 BC to modern times.
Knossos is the obvious starting point for a trip around the island described in our guide to Crete. To follow the Mycenaean Greeks who took over its archives back to their mainland strongholds, read about Mycenae, and for the sanctuary where later Greeks consulted their gods, see Delphi.