Sentence examples for exact origin from inspiring English sources

Although it is believed to have originated in camels, its exact origin remains a mystery.

While its exact origin is still unclear, this pathogen, and many others (like avian influenza), originated from animals being raised or eaten for food.

Gawker obtained the tape without knowing its exact origin.

The exact origin of bridge is not known with certainty.

The exact origin of the Ember seasons is uncertain.

The exact origin of the practice is unknown.

Without it, environmentalists warn, mahogany -- exact origin unknown -- will continue entering the United States.

But the exact origin of these gradients, and the molecules involved, is still shrouded in mystery.

I couldn't establish whether what I heard had that exact origin.

The exact origin of Baumkuchen, like that of so many other food specialties, seems murky.

The exact origin of the tale may be cloudy, but what is clear, Mr. Burns said, is its enduring appeal.