What does the first coined money in ancient Britain appear to have been?

Copper money; but after the arrival of the Saxons in England, scarcely any copper money was used for many centuries, nor did it become common till 1672; it was first used in Scotland and Ireland in 1340.

What is a Mint?

A place established by public authority for coining money. In the United States, the first mint was in Philadelphia; branches have been established in other parts of the Union. In most countries, the privilege of coining money is regarded as a prerogative of the sovereign power. Formerly, in Great Britain, cities, towns, and even individuals, were allowed to coin money for the convenience of trade; but now this is forbidden, except at the Mint in the Tower of London.

What is meant by Navigation?

The science or art by which the mariner is taught to conduct his ship from one place to another. Some, perhaps, will consider the formation and use of the Ark, as a first step towards the invention of this art; but it is an erroneous idea, because the direction and means for accomplishing this immense work were afforded by God, for the preservation of righteous Noe and his family. Besides, nothing is recorded of any means or of any necessity for its occupants navigating it to any particular place, or from one place to another; no intention of this sort is apparent, the ark being merely a vast shelter, rendered capable of floating on the water.

Erroneous, wrong, in error.

Apparent, manifest, made to appear.

What probably gave the first idea of Navigation?