Why is it important for historians to keep up with the discoveries of modern archaeologists, such as those who continue to excavate fort james?

In 1996 archaeologists from the association of preservation of Virginia antiquities found the artefacts of the fort James. It was thought that with the explosion Jamestown Peninsula turned into an island the Fort James sank under the sea.

But later many weapons, armours and some games were found and it was established that there was once a colony at that place. Colonialist arrived to build up new colonies and live in 1600's.

the outcome of 1970 oil crisis in united states was that, they began to search ways on how to reduce oil.

in 1970 was a period when there were energy and oil crisis. those who were major centers for industrialization were forced to keep way from supplying of petroleum.

some of the result of this crisis was economic growth became stagnant because prices of oil surged.

due to the increased prices some countries like mexico and norway benefited.

is this like a kind of true or false question?