Crush – Definition, Concept, Origin of the term
We explain what a crush is, the origin of the term in English, and how it was used. We also …
Planisphere – Definition, Types, Characteristics, and Examples
We explain what a planisphere is, its types and characteristics. Also, what is a celestial planisphere? What is a planisphere? …
Greenwich Meridian – Concept, Characteristics, and History
We explain what the Greenwich Meridian is and the history of this imaginary line. We also explain how it is …
Numbering System – Concept, Types, Characteristics, and Examples
We explain what a numbering system is and study the characteristics of each type of system through examples from different …
Social Mobility – Definition, Importance, Types, and Causes
We explain what social mobility is, its types, causes, and its relationship to poverty. We also explain what social mobility …
Social Classes – Concept, Definition, and Characteristics
We explain what social classes are, how Marxism defines them, and which ones we find today. We also explain the …
Judaism – Definition, Characteristics, Beliefs, and Sacred Books
We explain what Judaism is, its origin, characteristics, and beliefs. We also explain its main currents and sacred books. What …
Ten Commandments – Concept, Definition, and Origin
We explain what the Ten Commandments of the Judeo-Christian tradition are, what they are, What is its definition, and their …
Kosher – definition, Concept, Permitted and Prohibited Animals
We explain what kosher food is, which animals can and cannot be consumed. We also explain what kosher certification is. …
Islam – Definition, History, Beliefs, Superstition
We explain what Islam is, its branches, history, and main beliefs. We also explain the place of women and what …