3. Taxes paid in the form of precious stones, metals, textiles, agricultural products, manual labor, and even human beings.

Tributes.

Explanation:

Taxation can be defined as the involuntary or compulsory fees levied on individuals or business entities by the government to generate revenues used for funding public institutions and activities.

The different types of tax include the following;

1. Income tax: a tax charged on the amount of money made by workers in a state. This type of tax is paid by employees with respect to the amount of money they receive as their wages or salary.

2. Property tax: it is typically based on the value of an individual's business or home. It is mainly taxed on physical assets or properties such as land, building, cars, business, etc.

3. Sales tax: it is typically a percent of the price of the products sold in any retail store. It is being paid by the consumers (buyers) of finished goods and services and then, transfered to the appropriate authorities by the seller.

In the Medieval period, various empires and states usually obtain wealth in kind from others as a sign of allegiance, respect or submission. This was generally referred to as tributes.

Hence, tributes are taxes paid in the form of precious stones, metals, textiles, agricultural products, manual labor, and even human beings.

answer; self-serving bias;