Hallycon Academy

Course 1 · Beginner

What money is: from barter to digital euros

Where money came from, why it works and what it is today: barter and IOUs, coins, paper money, gold, 1971, bank money, the euro, the franc and the digital euro.

  • 8 lessons
  • 56 min
  • Free
  • A certificate when you finish

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Who it is for

For anyone who wants to start at the very beginning and finally understand what money is and why it works. No prior knowledge needed.

The lessons

Each lesson has a short video, a quiz and links to learn more. The full lessons open after a free sign-in.

  1. Lesson 1: What money does, and why it needs trust

    7 min

    Money is whatever people accept because they trust others will accept it too. It has three jobs, and it fails when trust fails.

    Key points

    • Money has three jobs: paying, measuring prices and keeping value for later.
    • It works only because people trust that others will take it.
    • When trust breaks, money stops working, as history shows.

  2. Lesson 2: Before coins: barter, shells and IOUs

    7 min

    The barter story is only half true. The oldest records show people keeping accounts of debts long before the first coin.

    Key points

    • Barter needs two people who each want what the other has, at the same moment.
    • Clay tablets from Mesopotamia record loans and debts thousands of years before coins.
    • Shells, salt, cattle and grain all served as money wherever people trusted them.

  3. Lesson 3: Coins, kings and the first inflation

    7 min

    The first coins appeared in Lydia around 600 BC. Rulers soon learned to mix in cheaper metal, and prices rose.

    Key points

    • A coin is a weighed piece of metal with a ruler's stamp on it.
    • Putting less silver or gold in coins ("debasement") was an old way for rulers to pay their bills.
    • Between about 238 and 268 AD, Rome's main silver coin went from about 2.2 grams of silver to less than 0.1 gram (CNRS, Roman Imperial Coinage project).

  4. Lesson 4: Paper money: promises you can carry

    7 min

    From Chinese paper notes to Europe's first banknotes, paper money began as a receipt for metal. It works only while people trust whoever issues it.

    Key points

    • China used paper money about 1,000 years ago; Europe's first banknotes came from Stockholm in 1661 (Sveriges Riksbank history).
    • A banknote started as a promise to pay out gold or silver on demand.
    • Print too much and trust collapses: in November 1923 one US dollar cost 4.2 trillion German marks (German Bundestag).

  5. Lesson 5: The gold standard and Bretton Woods

    7 min

    For about a century many currencies were tied to gold. After 1944 the world tied its currencies to the dollar, and the dollar to gold.

    Key points

    • Under the gold standard a banknote could be swapped for a fixed weight of gold.
    • In 1944 at Bretton Woods, 44 countries fixed their currencies to the dollar, and the dollar to gold at $35 an ounce (Federal Reserve History).
    • Money tied to metal limits what governments can spend: that was its strength and its weakness.

  6. Lesson 6: 1971: the day money lost its anchor

    7 min

    On 15 August 1971 the United States stopped swapping dollars for gold. Since then our money rests on trust in central banks, not on metal.

    Key points

    • On 15 August 1971 the US closed the "gold window"; by 1973 the big currencies floated freely.
    • Money today is "fiat": it has value because the law and our trust say so.
    • Keeping prices stable became the central banks' main job.

  7. Lesson 7: Money today: cash, bank money and payments

    7 min

    Most of the money you own is not cash but a number at your bank. How cards, transfers and instant payments move it, and why cash is still different.

    Key points

    • Notes and coins were only about 9% of the euro area's broad money (M3) in September 2026; most of the rest is bank deposits (ECB).
    • Cards, transfers and apps move bank money; since 2025, euro-area banks must offer instant transfers at no higher price than normal ones.
    • Cash is central bank money: the only money the state itself hands you.

  8. Lesson 8: The euro, the franc and digital money

    7 min

    How the euro was born, why the Swiss franc is different, and what a digital euro would and would not change.

    Key points

    • The euro started on accounts in 1999 and as cash in 2002; the Swiss franc dates from 1850.
    • A digital euro would be central bank money on your phone; as of October 2026 the ECB is preparing it, and EU law still has to decide if it comes.
    • Crypto coins are issued by no central bank, which is one reason their prices swing so much.

What’s inside

  • Short videos: About two minutes for each lesson
  • Quizzes: Three questions after each lesson
  • Calculators: Inflation, compound interest, an emergency fund and fees
  • Certificate: For every course you complete

The full lessons, videos and quizzes open after a free sign-in: your name, email, mobile number and a PIN. No card, no obligation.

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General financial education. Hallycon Academy does not manage money, sell investment products or give personal advice. Examples in the lessons promise no return.

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