Why was the invention of barbed wire in 1874 so important to farmers

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?

What was a immediate cause of the panic of 1837

What post war changes took place in north america