What happened on September 25

Roman emperor from 275 to 276

Marcus Claudius Tacitus was Roman emperor from 275 to 276. During his short reign he campaigned against the Goths and the Heruli, for which he received the title Gothicus Maximus.

Descendant of Muhammad and revolutionary leader (died 762)

Abū ʿAbd Allāh Muḥammad ibn ʿAbd Allāh ibn al-Ḥasan al-Muthannā ibn al-Ḥasan al-Mujtabā ibn ʿAlī ibn Abī Ṭālib or Muḥammad al-Nafs al-Zakiyya, was a descendant of the Islamic prophet Muhammad, through his daughter Fatimah. Known for his commanding oratory skills, amiable demeanor, and impressive build, he led the Alid Revolt in Medina, a failed rebellion, against the second Abbasid caliph Al-Mansur. He and a few hundred soldiers faced against a large Abbasid force under Isa ibn Musa, and he was killed on December 6, 762 CE.

1066 battle in England

The Battle of Stamford Bridge took place at the village of Stamford Bridge, East Riding of Yorkshire, in England, on 25 September 1066, between an English army under King Harold Godwinson and an invading Norwegian force led by King Harald Hardrada and the English king's brother Tostig Godwinson. After a bloody battle, both Hardrada and Tostig, along with most of the Norwegians, were killed. Although Harold Godwinson repelled the Norwegian invaders, his army was defeated by the Normans at Hastings less than three weeks later.

1237 treaty between England and Scotland

The Treaty of York was an agreement between the kings Henry III of England and Alexander II of Scotland, signed at York on 25 September 1237, which affirmed that Northumberland, Cumberland, and Westmorland were subject to English sovereignty. This established the Anglo-Scottish border in a form that remains almost unchanged to modern times. The treaty detailed the future status of several feudal properties and addressed other issues between the two kings, and historically marked the end of the Kingdom of Scotland's attempts to extend its frontier southward.

1396 battle during the Ottoman wars in Europe

The Battle of Nicopolis took place on 25 September 1396 and resulted in the rout of an allied Crusader army, assisted by the Venetian navy, at the hands of an Ottoman force, raising the siege of the Danubian fortress of Nicopolis and leading to the end of the Second Bulgarian Empire. It is often referred to as the Crusade of Nicopolis, as it was one of the last big Crusades of the Middle Ages, together with the Crusade of Varna in 1443–1444. By their victory at Nicopolis, the Turks discouraged the formation of European coalitions against them.