Phrase by the age of

• By the age of twelve he had already written his first tragedy.
• But by the age of 28, Nicklaus had already won seven majors.
• By the age of 10, he was dabbling in the stock market.
• By the age of 45, he was on the Supreme Court bench.
• They also had to retire by the age of 32 or 35.
• Some 15 percent of the children die by the age of 5.
• Four children by the age of 22 was enough for Earserline Smith.
• But, by the age of 20, Snyder was already a seasoned mountaineer.
• By the age of 12, his short films were appearing on Nickelodeon.
• By the age of 19, his playing career was all but ended.
• His essential tastes, musical and otherwise, gelled by the age of 20.
• Four out of five women are widows by the age of 75.
• By the age of 10, the difference in academic achievement went away.
• Testosterone effects can also be classified by the age of usual occurrence.
• By the age of 8, Schuyler was determined to become an actress.
• For most people, hGH levels drop off dramatically by the age of 30.
• McFadden had been arrested at least 16 times by the age of 16.
• I didn't expect to win four by the age of 25.
• By the age of 17 Wang started listening to Rock music.
• John learned to read and write by the age of four.