Why did the us become involved in vietnam?

Which of the following flow charts accurately illustrates the history of constitutional amendments in the united states?

Nhis essay about the atomic bombing of japan during world war ii, a student has used statistics he found in an article in the online archives of the irish times. the article is from may 5, 1997, and is called “cancer finding in hiroshima.” there is no author given. how should the student cite this source using mla citation format?

The byzantine empire weakened after asia minor