What did people use before money was invented?

Have you ever wondered about the history of money and the transactions that occurred before it was even invented? It's fascinating to think about how people exchanged goods and services in the past. So, what exactly did people use as a means of exchange before money came into existence? Did they rely on bartering, where goods and services were directly traded for other goods and services? Or were there other, more sophisticated systems in place? Join me as we delve into this intriguing topic and uncover the secrets of pre-monetary economies.