Year 1001 (MI) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. It is the first year of the 11th century and the 2nd millennium. Events By place Africa Khazrun ben Falful, from the Maghrawa family Banu Khazrun, begins ruling Tripoli, on the African continent. Asia March 17 – The Buddhist ruler of Butuan, in the Philippines (P’u-tuan in the Sung Dynasty records), Sari Bata Shaja, makes the first tributary mission to China. The Changbai Mountains volcano, located on the present-day Chinese-Korean border, erupts with a force of 6.5, the fourth largest Holocene blast (approximate date). The Tao/Tayk region is annexed by the Byzantines, as the Theme of Iberia. Mahmud of Ghazni, Muslim leader of Ghazni, begins a series of raids into northern India, establishing the Ghaznavid Empire across most of today's Afghanistan, eastern Iran, and Pakistan. Battle of Peshawar: Jayapala suffers defeat from the Ghaznavid Empire. Former emperor Đinh Phế Đế dies, while suppressing the Cửu Long Rebellion in Thanh Hoa Province. Khmer King Jayavarman V is succeeded by Udayadityavarman I, and/or Suryavarman I. Construction begins on the Liaodi Pagoda, the tallest pagoda in Chinese history (completed in 1055). Japan January 13 – Empress consort Fujiwara no Teishi dies in childbirth. November – The imperial palace is destroyed by fire. 70th birthday and longevity ceremony of Fujiwara no Bokushi (mother-in-law of Fujiwara no Michinaga, grandmother of Empress Shōshi). 40th birthday of Empress dowager Senshi (mother of Emperor Ichijō). Europe February 6 – After leading the revolt against Emperor Otto III and expelling the Crescentii, Gregory I, Count of Tusculum is named "Head of the Republic". July 31 – Emperor Otto III confirms the possessions of Ulric Manfred II of Turin, and grants him privileges. July – Sergius II becomes Patriarch of Constantinople. Byzantine Emperor Basil II attempts to reconquer Bulgaria. Robert II, King of France, marries for the third time, with Constance Taillefer d'Arles. Otto III, Holy Roman Emperor has Charlemagne's vault opened at Aachen Cathedral. The First Battle of Alton: Danish invaders defeat the English. Battle of Pinhoe: Vikings defeat the Anglo-Saxons in Devon. Bolesław I of Poland begins ruling parts of Slovakia. Bryachislav of Polotsk begins ruling Polotsk. Werner I, Bishop of Strasbourg begins ruling the Archbishopric of Strasbourg. Ermengol I of Urgell makes his second voyage to Rome. Þorgeirr Ljósvetningagoði ends being a lawspeaker in Iceland's Althing. Ælfgar,