when did Europeans begin to use "Curry powder" in their food? and how they became...

[.^.]

...introduced to them? also, which countries first saw Curry powder ? how it was made and what were its known health benefits?

HOW IMPORTANT AND HOW MUCH DESIRED? WHY IT COULDNT BE MADE IN EUROPE?
please explain what you can.

thanks for your answers!
WHEN DID THE AVERAGE PERSON GET THE OPPORTUNITY TO GO AND BUY "CURRY POWDER" AS WELL AS CHINESE TEAS,,ETC IN ENGLAND OR OTHER COUNTRIES? WHICH TOWNS, CITIES WOULD HAVE BEEN EASY AND HOW EXPENSIVE AGAIN AND WHY?

HOW DESIRED TOO?

and why? WHICH OTHER SPICES? AND WHY?