Spice trade introduced vinegar to India, and Franciscan priests manufactured it from coconut toddy. Indian food, adapted to the European palate, became visible in England by 1811 as exclusive establishments began catering to the tastes of both the curious and those returning from India. Opium was a part of the spice trade and some people involved in the spice trade were driven by opium addiction. Spice trade The spice trade refers to the trade between historical civilizations in Asia, Northeast Africa and Europe. Spices such as cinnamon, cassia, cardamom, ginger, pepper, and turmeric were known and used in antiquity for commerce in
Cassia fistula and the tree was depicted on a 20-rupee stamp. The golden rain tree is the national flower of Thailand; its yellow flowers symbolize Thai royalty. A 2006–2007 flower festival, the Royal Flora Ratchaphruek, was named after the tree, which is known in Thai as" ratchaphruek" (Thai: ราชพฤกษ์) and the blossoms commonly referred to as "dok koon" (Thai: ดอกคูน). "C. fistula" is also featured on a 2003 joint Canadian-Thai design for a 48-cent stamp, part of a series featuring national emblems. "Cassia acutifolia", the pudding-pipe tree, furnishes the cassia pods of commerce. In Laos, its blooming flowers known locally as "dok