Portal:Biography/Did you know/4


 * ... that Dave Gunness (pictured) designed concert loudspeakers used by Eric Clapton, Paul McCartney, Iron Maiden, Pearl Jam, Usher, and Snoop Dogg?
 * ... that former Israeli politician and Speaker of the Knesset Shlomo Hillel was in charge of an underground ammunition factory disguised as a laundry facility during the British Mandate of Palestine?
 * ... that Hasan ibn Zayd, the founder of the Zaydid emirate of Tabaristan, was succeeded by his brother Muhammad, who lost it to the Samanids?
 * ... that Thomas Jefferson Ramsdell built the opera house where James Earl Jones started his career?
 * ... that British physiologist Mabel Purefoy FitzGerald attended Oxford before women were granted degrees and 75 years later received an honorary master's when she was 100 years old?
 * ... that Fredrik Magnus Piper introduced the English landscape garden to Sweden?
 * ... that although Kosta Manojlović was instrumental in the establishment of the Belgrade Music Academy, serving as its first rector, he was forced to retire from it for political reasons?