Spain wished to compete with Portugal for trade.
Climatic condition was the major factor for migrating to new places.
The Arab Spring was a loosely related group of protests that ultimately resulted in regime changes in countries such as Tunisia, Egypt and Libya. Not all of the movements, however, could be deemed successful—at least if the end goal was increased democracy and cultural freedom. In fact, for many countries enveloped by the revolts of the Arab Spring, the period since has been hallmarked by increased instability and oppression. Given the significant impact of the Arab Spring throughout northern Africa and the Middle East, it’s easy to forget the series of large-scale political and social movements arguably began with a single act of defiance.
The Arab Spring began in December 2010 when Tunisian street vendor Mohammed Bouazizi set himself on fire to protest the arbitrary seizing of his vegetable stand by police over failure to obtain a permit. Bouazizi’s sacrificial act served as a catalyst for the so-called Jasmine Revolution in Tunisia. The street protests that ensued in Tunis, the country’s capital, eventually prompted authoritarian president Zine El Abidine Ben Ali to abdicate his position and flee to Saudi Arabia. He had ruled the country with an iron fist for more than 20 years.
They are germany, italy and japan.
The national government got stronger thanks to the Articles of Confederation being replaced with the US Constitution. The Articles of Confederation was America's first constitution. This constitution lasted roughly a decade, as it was extremely ineffective and gave the federal government very little power. For example, the federal government could not collect taxes or force states to follow national laws.
When the US Constitution was passed, the federal government gained significant power. This included the creation of an executive branch, the idea that federal laws trump state laws, and the ability to raise funds in order to create a national military.