Earliest

The earliest signs of life on Earth are believed to be around 3.5 billion years old.

The earliest warning sign of a heart attack is chest pain.

She was diagnosed with the earliest stage of diabetes.

The earliest forms of communication were through sign language and gestures.

The earliest delivery time is tomorrow afternoon.

He finished the race earliest among all the runners.

The earliest train is usually the most crowded.

We should start the project earliest to avoid delays.

The earliest written language was invented by the Sumerians and was called cuneiform.

The earliest forms of transportation were walking and riding animals such as horses and camels.

The earliest photographs were black and white and required long exposure times.