The correct answer is the first choice above, where it reads, 'maturing of rights which a party can legally act upon.'
Vesting of rights is defined as having to provide an immediate
and secured right for the present or future by which it couldn't be taken away
when given by another party.
The stamp act was a direct tax on the colonists and led to a major cause of the revolution. “Taxation with representation”
Two major events triggering modernization of the middle ease would be World War I that started the rise of ethnic consciousness, overthrowing the ottoman rule. And the founding of Israel on 1948 which had established better access to other countries around the world starting the resolution of conflict with the help of UN which will then allow the countries to develop.
The U.S. President Trump, after the past few presidents have been holding this off, Has finally made the decision and signed the waiver making the decision to move the U.S. Embassy from Tel Aviv to Jerusalem. Though they already could make this decision long ago, every six months, the past presidents kept holding it off. There is more to it, but the simple answer is Jerusalem. However your question does not seem legit... why do you ask this?