Answer:
Rome became the most powerful state in the world by the first century BCE through a combination of military power, political flexibility, economic expansion, and more than a bit of good luck. This expansion changed the Mediterranean world and also changed Rome itself.
Explanation:
Your answer that fills in the blank is: Social Security.
Answer:
Lacks died on August 8, 1951, of metastatic cervical cancer. Her tissue cells, however, attained immortality as HeLa, a cell strain that has been in constant use since 1951. These cells were remarkable in their ability to live and reproduce indefinitely, unlike typical cell lines that would last a few weeks, at best.
Explanation:
She was a sophisticated women and very well known to a lot of people because she was nice and was helpful to those around her.