Answer:
He was not able to preach Islam in Mecca, but he was able to do so in Medina.
Of course it has, many third world countries require modern technology to grow and flourish. Before the industrial revolution in the United States, many people worked extremely hard to make clothes and create armory but after the revolution, the impact was huge sewing machines came into work, interchangeable parts and etc. we now use technology that we have to help countries that are still developing.
I believe the answer is: somewhat more
When a person make a public virginity-until-marriage pledge, they tend to be more likely to feel some sort of social pressure to follow on their words in fear of being seen as a hypocrites by other peers. This would indeed improve their likelihood to stay a virgin, But the effect of the social pressure tend to diminish over time
Social studies is important because history always seems to have a way of repeating itself, but the more you know about history, the more you can prevent some of the bad things that happen. It's also important to know about other countries and cultures and what happened before you were born and what's happening now. It's important to be in the know.
GDP is a way to calculate the economy or cash a country has, yet nowadays money is not something many focus on. The new generation has come to realize that many things are more important than money. Though the United States has the largest GDP, Sweden has been titled the "Happiest Country". There are many things other than money that can be measured, things that people might find more important. People no longer want to measure things by the money one might make. Because our world doesn't have to revolve around money, if we could focus on other things then we might become less self-centered and less greedy, as income portrays selfishness and greediness.