What impact did the columbian exchange have on imperialism

What event was one of the greatest factors that led to massive emigration from ireland to the united states in the mid—1800s

Use the position statement you used earlier and the ideas you gathered, and write an editorial that is one paragraph in length. include your position statement and supporting ideas.

Ialready know the answer to this question but i wanted to ask you guys to see if you know. who started the okinawan karate style ryukyu kempo? when year was it found?