Treaties take effect when two conditions are met: (1) the treaty wording about when the treaty is to become effective and (2) ratification by the parties to the treaty. Of these two, ratification usually is a longer process and so will come later than the time specified in the treaty.
The treaty was ratified by the Senate for it to take effect
they had no effect!
The Adams-Onís Treaty with Spain went into effect in 1821.
According to the treaty Web site, the treaty went into effect in 1961.
It ended it
It is still in effect
It ended the Revolutionary War
When Truman was president.
The Treaty of Paris marked the end of France as a power in North America.
The Treaty of Paris marked the end of France as a power in North America.
The Treaty of Paris marked the end of France as a power in North America.
All treaties must ratified by the Senate before they take effect.