How did the Hanseatic league originate and how did it evolve into the East India co.?

Question

Also, how were Jews involved?

Answer 1

Historians generally trace the origins of the League to the foundation of the Northern German town of Lübeck, established in 1158/1159 after the capture of the area from the Count of Schauenburg and Holstein by Henry the Lion, the Duke of Saxony.
Exploratory trading adventures, raids and piracy had occurred earlier throughout the Baltic (see Vikings) — the sailors of Gotland sailed up rivers as far away as Novgorod, for example — but the scale of international economy in the Baltic area remained insignificant before the growth of the Hanseatic League.
German cities achieved domination of trade in the Baltic with striking speed over the next century, and Lübeck became a central node in all the sea-borne trade that linked the areas around the North Sea and the Baltic Sea. The 15th century saw the climax of Lübeck's hegemony. (Visby, one of the midwives of the Hanseatic league in 1358, declined to become a member. Visby dominated trade in the Baltic before the Hanseatic league, and with its monopolistic ideology, suppressed the Gotlandic free-trade competition.)
By the late 16th century, the League imploded and could no longer deal with its own internal struggles, the social and political changes that accompanied the Reformation, the rise of Dutch and English merchants, and the incursion of the Ottoman Turks upon its trade routes and upon the Holy Roman Empire itself. Only nine members attended the last formal meeting in 1669 and only three (Lübeck, Hamburg and Bremen) remained as members until its final demise in 1862.
Despite its collapse, several cities still maintain the link to the Hanseatic League today. Even in the 21st century, the cities of Deventer, Kampen, Zutphen, Lübeck, Hamburg, Bremen, Rostock, Wismar, Stralsund, Greifswald and Anklam call themselves Hanse cities. For Lübeck in particular, this anachronistic tie to a glorious past remained especially important in the second half of the 20th century. Lübeck, Hamburg and Bremen continue to style themselves officially as "Free and Hanse cities". The Nazis removed this privilege through the Greater Hamburg Act, 1937 after the Senat of Lübeck did not permit Adolf Hitler to speak in Lübeck during his election campaign