The
Arba'a Rukun Mosque is completed in Mogadishu. The Arba'a Rukun Mosque (Arabic: أربع روكون), also known as Arba Rucun, is a mosque in the medieval district Shangani, Mogadishu, Somalia.[4]
May 21 – Kublai sends his envoy Hao Jing to negotiate with
Song Dynasty Chancellor Jia Sidao, after the small force left by Kublai south of the
Yangtze River is destroyed, by a Chinese army of the
Southern Song Dynasty. Chancellor Jia Sidao imprisons the entire embassy of Kublai. This slight will not be forgotten by Kublai, but he is unable to assault the Song, due to the civil war with his rival brother
Ariq Böke.[citation needed]
Croatia is divided into two sub-regions ruled by
ban: the Croatian region on the south and Slavonian region on the north, by King
Béla IV of Hungary.[16][17]
German
musical theoristFranco of Cologne publishes Ars Cantus Mensurabilis, in which he advances a new theory of musical notation, in which the length of a musical note is denoted by the shape of that note, a system still used today.[22][23]
^Runciman, Steven (1999) [1951].
A History of the Crusades. Vol. III: The Kingdom of Acre and the Later Crusades. Cambridge, New York, Melbourne, Madrid: Cambridge University Press Archive. pp. 305–314.
ISBN978-0-521-34772-3.
The
Arba'a Rukun Mosque is completed in Mogadishu. The Arba'a Rukun Mosque (Arabic: أربع روكون), also known as Arba Rucun, is a mosque in the medieval district Shangani, Mogadishu, Somalia.[4]
May 21 – Kublai sends his envoy Hao Jing to negotiate with
Song Dynasty Chancellor Jia Sidao, after the small force left by Kublai south of the
Yangtze River is destroyed, by a Chinese army of the
Southern Song Dynasty. Chancellor Jia Sidao imprisons the entire embassy of Kublai. This slight will not be forgotten by Kublai, but he is unable to assault the Song, due to the civil war with his rival brother
Ariq Böke.[citation needed]
Croatia is divided into two sub-regions ruled by
ban: the Croatian region on the south and Slavonian region on the north, by King
Béla IV of Hungary.[16][17]
German
musical theoristFranco of Cologne publishes Ars Cantus Mensurabilis, in which he advances a new theory of musical notation, in which the length of a musical note is denoted by the shape of that note, a system still used today.[22][23]
^Runciman, Steven (1999) [1951].
A History of the Crusades. Vol. III: The Kingdom of Acre and the Later Crusades. Cambridge, New York, Melbourne, Madrid: Cambridge University Press Archive. pp. 305–314.
ISBN978-0-521-34772-3.