Here is the correct answer of the given question above. The name of the Celtic holiday that celebrated their official end of summer on October 31 is called SAMHAIN. Samhain (<span>pronounced sah-win) which means "end of summer". Hope this answer helps you. </span>
Nobody else could build that canal. The Americans are the only people who could build them. They also made the Panama canal so that they could access the necessary territory.