Mail adams 50 percent

You're referring to John Adams, the 2nd President of the United States!

As for the 50% mark, I'm assuming you're asking about a notable event or achievement in his life that occurred around the 50% mark of his life. John Adams was born on October 30, 1735, and died on July 4, 1826.

Around the 50% mark of his life, which would be around 1775, John Adams was a young lawyer and politician in Massachusetts. He was a delegate to the Continental Congress and played a key role in the American Revolution, helping to draft the Declaration of Independence and the Massachusetts Constitution.

In 1779, Adams was appointed as the Minister to Great Britain, where he negotiated the Treaty of Paris, which ended the American Revolutionary War and recognized American independence.

So, around the 50% mark of his life, John Adams was a prominent figure in American politics and diplomacy, working to secure American independence and establish the country's relationships with other nations.