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20 van Alphen

Alphen aan den Rijn
Municipality
Straight canal with buildings on both sides
Aar and Aarkade
Black 8-pointed start centered on a white background
Flag
Centre white shield with centered black 8-pointed start. Gold lions rampant holding the shield on both sides and crown on top.
Coat of arms
Highlighted position of Alphen aan den Rijn in a municipal map of South Holland
Location in South Holland
Coordinates: 52°8′N 4°40′E / 52.133°N 4.667°E / 52.133; 4.667Coordinates: 52°8′N 4°40′E / 52.133°N 4.667°E / 52.133; 4.667
Country Netherlands
Province South Holland
Government
 • Body Municipal council
 • Mayor Liesbeth Spies (CDA)
Area
 • Total 132.49 km2 (51.15 sq mi)
 • Land 126.58 km2 (48.87 sq mi)
 • Water 5.91 km2 (2.28 sq mi)
Elevation 2 m (7 ft)
Population (May 2014)
 • Total 107,117
 • Density 846/km2 (2,190/sq mi)
Demonym(s) Alphenaar
Time zone CET (UTC+1)
 • Summer (DST) CEST (UTC+2)
Postcode 2390–2409, 2445, 2470–2471, 2730–2731, 2770–2771
Area code 0172
Website www.alphenaandenrijn.nl

Alphen aan den Rijn (Dutch pronunciation: [ˈɑlfə(n) aːn də ˈrɛi̯n], English: Alphen on the Rhine) is a town and municipality in the western Netherlands, in the province of South Holland, between Leiden and Utrecht. The town is situated on the banks of the river Oude Rijn (Old Rhine), where the river Gouwe branches off. The municipality had a population of 107,117 in 2014, and covers an area of 132.49 km2 (51.15 sq mi) of which 5.91 km2 (2.28 sq mi) is water.

The municipality of Alphen aan den Rijn also includes the communities of Aarlanderveen, Zwammerdam and Boskoop. The town is located in what is called the 'Green Heart' of the Netherlands, which is a somewhat less densely populated centre area of the Randstad.

The name "Alphen" is probably derived from the name of the Roman fort Albaniana, meaning "settlement at the white water". Its remains still lie underneath the city centre today.

The area around Alphen aan den Rijn has been inhabited for 2000 years. In the Roman era, the Oude Rijn was the main branch of the Rhine River and formed the north border of the Roman Empire. Since the rule of Emperor Claudius (41–54 AD), divisions of the Roman army were stationed here. Consequently, several Roman fortifications were located along the Oude Rijn, including castellum Albanianae in the centre of Alphen. The Romans had also built the first bridge over the Oude Rijn. Alphen was therefore an important commercial site in the area until Germanic raids ended that in 240 AD.

After recurring problems with flooding, especially in Utrecht and Leiden, the Oude Rijn was dammed at Wijk bij Duurstede in 1122, thereby making the Lek River the main branch of the Rhine. The Oude Rijn has not flooded since. During the Middle Ages, Alphen was a fiefdom called Alphen en Rietveld.


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