In 1422 King Wadysaw II Jagieo by the Privilege of Czerwinsk (Polish: "przywilej czerwinski") established the inviolability of nobles' property (their estates could not be confiscated except upon a court verdict) and ceded some jurisdiction over fiscal policy to the Royal Council (later, the Senat of Poland), including the right to mint coinage.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who establishd the inviolability of nobles property?
Ah, so.. King Wadysaw II Jagieo

In the late 19th century, after the Berlin conference had ended, European empires sailed with their armies to the Horn of Africa. The imperial clouds wavering over Somalia alarmed the Dervish leader Mohammed Abdullah Hassan, who gathered Somali soldiers from across the Horn of Africa and began one of the longest anti-colonial wars ever. The Dervish State successfully repulsed the British empire four times and forced it to retreat to the coastal region. As a result of its successes against the British, the Dervish State received support from the Ottoman and German empires. The Turks also named Hassan Emir of the Somali nation, and the Germans promised to officially recognize any territories the Dervishes were to acquire. After a quarter of a century of holding the British at bay, the Dervishes were finally defeated in 1920, when Britain for the first time in Africa used airplanes to bomb the Dervish capital of Taleex. As a result of this bombardment, former Dervish territories were turned into a protectorate of Britain. Italy similarly faced the same opposition from Somali Sultans and armies and did not acquire full control of parts of modern Somalia until the Fascist era in late 1927. This occupation lasted till 1941 and was replaced by a British military administration.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): In what year did Fascist Italy achieve full control of Somalia?
Ah, so.. 1927

Science came to play a leading role in Enlightenment discourse and thought. Many Enlightenment writers and thinkers had backgrounds in the sciences and associated scientific advancement with the overthrow of religion and traditional authority in favour of the development of free speech and thought. Scientific progress during the Enlightenment included the discovery of carbon dioxide (fixed air) by the chemist Joseph Black, the argument for deep time by the geologist James Hutton, and the invention of the steam engine by James Watt. The experiments of Lavoisier were used to create the first modern chemical plants in Paris, and the experiments of the Montgolfier Brothers enabled them to launch the first manned flight in a hot-air balloon on 21 November 1783, from the Chateau de la Muette, near the Bois de Boulogne.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who discovered carbon dioxide or fixed air?
Ah, so..
chemist Joseph Black