The Province of Cremona (; Cremunés: ; Cremasco: ; Casalasco-Viadanese: ) is a province in the Lombardy region of Italy. Its capital city is Cremona. The province occupies the central section of Padana Plain, so the whole territory is flat, without any mountains or hills, crossed by several rivers, such as the Serio and Adda, and artificial canals, most of which are used for irrigation. The river Po, which is the longest Italian river, is the natural boundary with the adjoining Province of Piacenza, while the Oglio separates the province from Brescia. History Lombardy has been inhabited since ancient times and stone age and Bronze Age rock drawings and artefacts have been found there. From the fifth century BC, Gallic tribes invaded and settled in the region, building several cities (including Milan) and ruling the land as far as the Adriatic Sea. From the third century BC the Romans expanded their sphere of influence into the area, and in 194 BC, the whole of what is now Lombardy, became a Roman province called Gallia Cisalpina. The Romans overwhelmed the previous civilisations and Lombardy became one of the richest and best-developed areas in Italy. It was here in 313 AD that the Roman Emperor Constantine the Great issued the famous Edict of Milan that gave freedom of religion to all people in the Roman Empire. Following the collapse of the Western Roman Empire, Lombardy was invaded by successive waves of tribes, the last of which was the Germanic Lombards in the late sixth century. Stability followed until 774, when the Frankish king Charlemagne conquered the area and annexed the Kingdom of the Lombards (most of northern and central Italy) to his empire. Geography The province of Cremona is a long, relatively narrow part of the Padana Plain in northern Italy, the outline of which is circumscribed by rivers. The province is orientated from northwest to southeast. To the west of the province lies the Province of Lodi, to the northwest lies the Province of Milan, to the north lies the Province of Bergamo, to the east lies the Province of Brescia, and to the southeast lies the Province of Mantua. The region of Emilia-Romagna lies to the south, Cremona abutting onto the Province of Reggio Emilia, the Province of Parma and the Province of Piacenza. Several rivers flow across the Lombardy Plain to join the Po which runs along the southern