# 102.3 Lesson - moneyEvolution

**Screen:** moneyEvolution

**Headline:** Money has evolved, since almost the beginning of time.

**Reward:** 2

**Text:** Thousands of years ago, a society in Micronesia used very large and scarce stones as a form of agreed currency. Starting in the 1500’s, rare Cowrie shells (found in the ocean) became commonly used in many nations as a form of money. And for millennia, gold has been used as a form of money for countries around the world -- including the United States (until 1971).

\=================================================================

## QUIZ

**Question:** What are some items that have been historically used as a unit of money?

**Answer:** Stones, seashells and gold

**Feedback:** Correct. Items that are rare and difficult to copy have often been used as money.

**Correct:** true

**Answer:** Tiny plastic Monopoly board game houses

**Feedback:** Wrong. They may have value when playing a game -- but not in the real world!

**Correct:** false

**Answer:** Coins made of chocolate

**Feedback:** Nope. They may be tasty. But they are not useful as money.

**Correct:** false

<figure><img src="/files/96TfowACLsP6dCHbpexY" alt=""><figcaption></figcaption></figure>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://earn.blink.sv/chapter-102-what-is-money/102.03-lesson-money-evolution.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
