The Azalai is a route for caravans that carried this commodity across the Sahara, after which it was traded for gold, and the origins of the Hanseatic League lie in the trading of this commodity, which was used to preserve fish.
During tsar Alexei's reign, an uprising occurred in Moscow over Boris Morozov's imposition of a tax on this commodity, and the French gabelle was also an unpopular tax on it. The towns which produced this commodity in England were appended with the suffix "wich" and were concentrated in Cheshire and Worcestershire. The Azalai is a route for caravans that carried this commodity across the Sahara, after which it was traded for gold, and the origins of the Hanseatic League lie in the trading of this commodity, which was used to preserve fish. For 10 points, name this commodity, the subject of British taxation which sparked a march by Gandhi.
During tsar Alexei's reign, an uprising occurred in Moscow over Boris Morozov's imposition of a tax on this commodity, and the French gabelle was also an unpopular tax on it.
{Salt}