Question: On what date did Battle of the birth place of Denny Januar Ali end?

Knowledge 1: Denny Januar Ali
Denny Januar Ali, known as Denny JA (born 4 January 1963 in Palembang, South Sumatra) is an intellectual entrepreneur and best-selling author. He holds records in the academic, political, social media, literature and cultural worlds in Indonesia. [SEP] Knowledge 2: Battle of Palembang
The Battle of Palembang was a battle of the Pacific theatre of World War II. It occurred near Palembang, on Sumatra, on 13–15 February 1942. The Royal Dutch Shell oil refineries at nearby Pladju (or Pladjoe) were the major objectives for the Empire of Japan in the Pacific War, because of an oil embargo imposed on Japan by the United States, the Netherlands, and the United Kingdom. With the area's abundant fuel supply and airfield, Palembang offered significant potential as a military base to both the Allies and the Japanese.
Knowledge 1: Umayyad Caliphate
Conflicts over Uthman's policies led to his murder in 656. Ali, the cousin and son - in - law of Muhammad, became caliph and moved his capital from Medina to Kufa. He soon met with resistance from several factions, especially from Muawiyah, the governor of Syria, who wanted Uthman's murderers arrested. Muhammad's wife, Aisha, and two companions of Muhammad, Talhah and Al - Zubayr, supported this demand. The conflict resulted in the First Fitna (``civil war '') from 656 until 661. Ali was victorious against Aisha in the Battle of the Camel in 656 but the Battle of Siffin (July 657) against Muawiyah was inconclusive. Ali's position als Caliph was weakened when he first agreed to an arbitration but then refused to accept the verdict, that both Ali and Muawiyah should step down and a new Caliph be chosen. In 661, the most vociferous opponents of the arbitration, the Kharijites, tried to kill both rivals; while Ali was killed, the attempt on Muawiyah failed. Ali's son Hasan (the second Imam for the Shias), accepted Muawiyah as Caliph on the condition that he be just to the people and keep them safe and secure, and that he not establish a dynasty to rule after his death. In spite of the latter condition, this marked the beginning of the Umayyad dynasty, with its capital in Damascus. [SEP] Knowledge 2: Dennis (CDP), Massachusetts
Dennis is a village and census-designated place (CDP) in the town of Dennis in Barnstable County, Massachusetts, United States. The population was 2,407 at the 2010 census. The CDP includes the populated places known as North Dennis and New Boston.
Knowledge 1: Ali
Ali was born inside the sacred sanctuary of the Kaaba in Mecca, the holiest place in Islam, to Abu Talib and Fatimah bint Asad. He was the first male who accepted Islam, and, according to some authors, the first Muslim. Ali protected Muhammad from an early age and took part in almost all the battles fought by the nascent Muslim community. After migrating to Medina, he married Muhammad's daughter Fatimah. He was appointed caliph by Muhammad's companions in 656, after Caliph Uthman ibn Affan was assassinated. Ali's reign saw civil wars and in 661, he was attacked and assassinated by a Kharijite while praying in the Great Mosque of Kufa, being martyred two days later.Ali is important to both Shias and Sunnis, politically and spiritually. The numerous biographical sources about Ali are often biased according to sectarian lines, but they agree that he was a pious Muslim, devoted to the cause of Islam and a just ruler in accordance with the Qur'an and the Sunnah. While Sunnis consider Ali the fourth and final of the Rashidun (rightly guided) caliphs, Shia Muslims regard Ali as the first Imam after Muhammad due to their interpretation of the events at Ghadir Khumm. Shia Muslims also believe that Ali and the other Shia Imams (all of whom are from the Ahl al-Bayt, Muhammad's household) are the rightful successors to Muhammad. Ali has also received recognition from a variety of non-Muslim organizations, such as the United Nations and the World Organization for Human Rights, for his governance and social justice. [SEP] Knowledge 2: Umayyad Caliphate
Conflicts over Uthman's policies led to his murder in 656. Ali, the cousin and son - in - law of Muhammad, became caliph and moved his capital from Medina to Kufa. He soon met with resistance from several factions, especially from Muawiyah, the governor of Syria, who wanted Uthman's murderers arrested. Muhammad's wife, Aisha, and two companions of Muhammad, Talhah and Al - Zubayr, supported this demand. The conflict resulted in the First Fitna (``civil war '') from 656 until 661. Ali was victorious against Aisha in the Battle of the Camel in 656 but the Battle of Siffin (July 657) against Muawiyah was inconclusive. Ali's position als Caliph was weakened when he first agreed to an arbitration but then refused to accept the verdict, that both Ali and Muawiyah should step down and a new Caliph be chosen. In 661, the most vociferous opponents of the arbitration, the Kharijites, tried to kill both rivals; while Ali was killed, the attempt on Muawiyah failed. Ali's son Hasan (the second Imam for the Shias), accepted Muawiyah as Caliph on the condition that he be just to the people and keep them safe and secure, and that he not establish a dynasty to rule after his death. In spite of the latter condition, this marked the beginning of the Umayyad dynasty, with its capital in Damascus.

Answer: 15 February 1942