Syedna Taher Saifuddin (Arabic سيدنا طاهر سيف الدين رض)(4 August 1885 - 12 November 1965) was the 51st Dā‘ī l-Muṭlaq and led the Dawoodi Bohras community from 1915 to 1965. He was succeeded by his son, Syedna Mohammed Burhanuddin.

Syedna Taher Saifuddin was born on 4 August 1888 (27th Zilqad 1305 Hijri), and at the age of 28, he succeeded to the leadership of the Dawoodi da‘wah and the associated Bohra community. Under his leadership, the Arabic learning academy Jamia Saifiyah in Surat, India, saw growth and development. The community also saw renewed adherence to Islamic tenets, general development and progress. He contributed to the development of many monuments, chief of them being the internal curtains of the Ka‘bah and the zarih of Imam ‘Alī and Imam Husain.^{[citation needed]} Several schools, the Saifee Hospital and Saifee Masjid in Mumbai were erected in his era.^{[citation needed]} The Zarih of Imam Husain at Karbala was made in 1939 AD/1358AH and 500 gold coins (6 kg)(each coin consisted 12 grams weight) & 200 thousand coins (2.4 Tons) of silver were used, and beautified with precious gems.

Taher is a commune in Jijel Province, which is located in Eastern Algeria. In 2008, the population was 78,500.

Maria Theresa Walburga Amalia Christina (German: Maria Theresia Walburga Amalia Christina) (13 May 1717 – 29 November 1780) was the only female ruler of the Habsburg dominions and the last of the House of Habsburg. She was the sovereign of Austria, Hungary, Croatia, Bohemia, Mantua, Milan, Lodomeria and Galicia, the Austrian Netherlands and Parma. By marriage, she was Duchess of Lorraine, Grand Duchess of Tuscany and Holy Roman Empress.

She started her 40-year reign when her father, Emperor Charles VI, died in October 1740. Charles VI paved the way for her accession with the Pragmatic Sanction of 1713 and spent his entire reign securing it. Upon the death of her father, Saxony, Prussia, Bavaria and France repudiated the sanction they had recognised during his lifetime. Prussia proceeded to invade the affluent Habsburg province of Silesia, sparking a nine-year conflict known as the War of the Austrian Succession. Maria Theresa would later unsuccessfully try to reconquer Silesia during the Seven Years' War.