Bratislava (, ), currently the capital of Slovakia and the country's largest city, has existed for about a thousand years. Because of the city's strategic geographical location, it was an important European hub due to its proximity to the advanced cultures of the Mediterranean and the Orient as well as its link to the rest of Europe, which were possible by the Danube River.
Prehistory
In the area where present-day Bratislava lies, three skeletons of the (Epi)Pliopithecus vindobonensis were found in the borough Devínska Nová Ves in 1957, dating to 25–15 million years ago. Teeth of the Griphopithecus suessi (formerly known as Sivapithecus darwiny or Dryopithecus darwiny), dating 14–10 million years ago, were also found in Devínska Nová Ves, this time in 1902. From the Paleolithic period, hand-axes and other stone tools of Homo heidelbergensis (from the periods about 0.45 million years and about 0.3 million years ago) and of Neanderthal man were found.
The first known permanent settlements on the town's territory (Linear Ceramics Culture) was during the Neolithic period. However, during the Early Stone Age there was already a settlement in the general area. But this was not within the present territory of the city. The first known fortified settlement on the area of later medieval castle of Bratislava appeared in Eneolithic. In the Bronze Age there were settlements from both older and younger (Urnfield cultures) part of the period. On the area of later Devín castle one finds important clues to the final period of the Bronze Age (Podoli Culture), when a fortified settlement arose on the strategic place: rock-cliff over river Morava joining river Danube.
Early Iron Age
The early Iron Age brought a shift of the settlements focus again to the area of today's historical centre and the castle of Bratislava. This period is considered an epilogue to Central European pre-history and this is attributed to the migration of the Thracian tribes, which brought with them their version of the Hellenic civilization. Many archaeological finds support the theory that both the castle-hill and the area of the town (on an important river-crossing) formed an important seat of local Hallstatt Culture and that the richly furnished mounds (barrows) excavated on eastern suburbs of the city may have been burial grounds of princes.
Late Iron Age
The La Tène period is defined as from 450 BC to 50 BC. Celts (more exactly the tribe of Boii) formed between 125 and 50 BC an important Celtic oppidum (fortified town) with a mint in the area of the castle hill and the historical centre. There is an acropolis on the castle hill and some settlements below (crafts) and around it (farming). Bratislava then became a genuine town for the first time in history (it will become a de facto town again in the 9th century AD and then again in the 11th century). The most notable finds are represented by silver coins, bearing inscriptions (biatecs in most cases). Biatec may have been the name of the local prince who organized the minting or the name of the place itself. After the bloody defeat at the hands of Dacian forces under the leadership of King Burebista (shortly after the middle of the 1st century BC) the remaining Celts retreated to the site of Devín, creating a smaller, more easily protected hill-fort settlement. The arrival of Germans from the west forced the rest of the Celts to seek protection under the Romans on the other (right) side of Danube.
1st century–10th century
From the 1st to 4th centuries the border of the Roman Empire (Limes Romanus) ran along the Danube. The northern side belonged to the Free Barbaricum (German tribes – Marcomanni) and southern side belonged to Rome. Under the suburb of Rusovce, the remains of the Roman border town Gerulata have been excavated, as well as cemeteries and farming background of the town (Villa Rusticas). Despite belonging officially to Barbaricum, several sites of Roman presence are to be found on the area of the city. There is, for example, the case of the Devín Castle, which historical records such as the Chronicle of Fulda, alluded to as the impregnable Roman military garrison called Dowina. Traces of Roman presence also include Stupava, a trading station and Dúbravka, which is known for the remains of Roman baths (attempt to build Villa Rustica?).
The Slavs arrived in the area between the 5th and 6th centuries during the Migration Period (375-568). Recently, archaeologists found a carbonized loaf of bread at Devin and its age was estimated to be older than the Slavic settlement but still fell within the period of the migration of nations.