Moral codes began breaking down, and new infectious diseases were introduced.

When the existing code began to take shape in the 1940's, the memory of the Great Depression was still fresh.

His code of conduct began in sociability, with a firm commitment to the practical.

These short codes usually began with a 7, 8 or 9.

My code, of course, begins with 4GH, and has done so for the past six years.

Yuri pressed the indicated code and the letters on the screen began to roll down.

To Kim's stunned delight, what was clearly a code began to scroll across the screen.

Everything in that particular story showed where codes of conduct had begun to be discussed and debated.

The use of his reports in law schools became less common beginning in the early 1900s as many states' civil codes began to become more developed.

These codes begin with a 4-letter prefix followed by a series of digits.