Abdullah bin Jassim Al Thani eldest son, Sheikh Ali bin Abdullah Al Thani. Oil was also discovered for the first time during his rule. Sheikh Abdullah bin Jassim Al Thani was born in the year 1880, in Doha, the capital city and state of Qatar, by his father, Sheikh Jassim bin Mohammed Al Thani. Although his mother is still unknown, he was born along with his eighteen siblings, with him being the 5th eldest among his siblings. He then ruled Qatar until 1940. Sheikh Abdullah's heir apparent, Sheikh Hamad bin Abdullah Al Thani, ruled Qatar from 1940 until his early death in 1948. Sheikh Abdullah
Jumada al-Thani of a new moon is sighted. Since the Islamic lunar calendar year is 11 to 12 days shorter than the solar year, Jumada al-Thani migrates throughout the seasons. The estimated start and end dates for Jumada al-Thani are as follows (based on the Umm Al-Qura calendar of Saudi Arabia): In Islamic eschatology: Jumada al-Thani Jumada al-Thani (, also transliterated ', ; also pronounced ', ) is the sixth month in the Islamic Calendar. It is also known as Jumaada al-Akhir and Jumada al-Akhira (, also transliterated "/", ; also pronounced "/", ). This is the sixth month of the Islamic