While gold is used in industry, its main historical use has been as a means of maintaining the value of wealth, usually in the form of jewelry and money. Gold, measured and priced in a troy ounces or grams, has been used as a store of value for at least 5,000 years. About 2,000 years ago, one troy ounce of gold might purchase a high quality, custom-made outfit. Today, the same amount of gold would probably be able to purchase a similar high-quality outfit, plus all of the matching accessories.
What does the passage say about the historical use of gold?

الإجابة الصحيحة هي It was a store of wealth, usually as jewelry or money.