<h2>
Answer: 1959</h2>
Explanation: They were admitted to the union in 1959.
The site map may reveal information about the way the site was used, including patterns of occupational use.
I believe that the answer is B.
From lakes and grasslands with hippos and giraffes to a vast desert, North Africa's sudden geographical transformation 5,000 years ago was one of the planet's most dramatic climate shifts.
The transformation took place nearly simultaneously across the continent's northern half, a new study finds. The results will appear in an upcoming issue of the journal Earth and Planetary Science Letters.
http://www.livescience.com/28493-when-sahara-desert-formed.html
