Wallachia or Walachia is a historical
Historical regions of Romania
At various times during the late 19th and 20th centuries, Romania extended over the following historical regions:Wallachia:*Muntenia or Greater Wallachia: as part of Wallachia, joined Moldavia in 1859 to create modern Romania;...

 and geographical region of Romania
Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

. It is situated north of the Danube
The Danube is a river in the Central Europe and the Europe's second longest river after the Volga. It is classified as an international waterway....

 and south of the Southern Carpathians
Southern Carpathians
The Southern Carpathians or the Transylvanian Alps are a group of mountain ranges which divide central and southern Romania, on one side, and Serbia, on the other side. They cover part of the Carpathian Mountains that is located between the Prahova River in the east and the Timiș and Cerna Rivers...

. Wallachia is sometimes referred to as Muntenia
Muntenia is a historical province of Romania, usually considered Wallachia-proper . It is situated between the Danube , the Carpathian Mountains and Moldavia , and the Olt River to the west...

(Greater Wallachia), through identification with the larger of its two traditional sections; the smaller being Oltenia
Oltenia is a historical province and geographical region of Romania, in western Wallachia. It is situated between the Danube, the Southern Carpathians and the Olt river ....

(Lesser Wallachia).

Wallachia was founded as a principality
A principality is a monarchical feudatory or sovereign state, ruled or reigned over by a monarch with the title of prince or princess, or by a monarch with another title within the generic use of the term prince....

 in the early 14th century by Basarab I
Basarab I of Wallachia
Basarab I the Founder was voivode or prince of Wallachia . His rise seems to have taken place in the context of the war between the Kingdom of Hungary and the Orthodox states in the north of the Balkan Peninsula...

, after a rebellion against Charles I of Hungary
Charles I of Hungary
Charles I , also known as Charles Robert , was the first King of Hungary and Croatia of the House of Anjou. He was also descended from the old Hungarian Árpád dynasty. His claim to the throne of Hungary was contested by several pretenders...

, although the first mention of the territory of Wallachia west of the river Olt
Olt may refer to:* Olt Online Taxes, a tax website for USA Taxpayers* Olt County, a county of Romania* Olt Defile, a defile that has been cut into the Transyvanian Alps in south-central Romania by the Olt River* Olt River, a river in Romnia...

 dates to a charter given to the voievod Seneslau
Seneslau, also Seneslav or Stănislau, was a Vlach voivode mentioned in a diploma issued by king Béla IV of Hungary on 2 July 1247; the diploma granted territories to the Knights Hospitaller in the Banate of Severin and Cumania...

 in 1246 by King Bela IV of Hungary.

1462    Vlad III the Impaler attempts to assassinate Mehmed II (The Night Attack) forcing him to retreat from Wallachia.

1476    Vlad III Dracula defeats Basarab Laiota with the help of Stephen the Great and Stephen V Bathory and becomes the ruler of Wallachia for the third time.

1599    Michael the Brave, Prince of Wallachia, defeats the Army of Andrew Bathory in the Battle of Şelimbăr, leading to the first recorded unification of the Romanian people.

1821    Decisive defeat of the Philikí Etaireía by the Ottomans at Drăgăşani (in Wallachia).

1856    Barbu Dimitrie Ştirbei abolishes slavery in Wallachia.

1859    Political union of Moldavia and Wallachia; Alexandru Ioan Cuza is elected as ruler.