I believe they were adapted from India.
It was composed of war captives and Christian youths pressed into service; all the recruits were converted to Islam and trained under the strictest discipline. It was originally organized by Sultan Murad I. The Janissaries gained great power in the Ottoman Empire and made and unmade sultans.
Well judging from the battle of the Alamo they didn't want it to happen.
B) imports
The Townsend acts taxed imports, such as tea, they wanted to receive revenue from colonists.