Examlex
Classify the triangle as acute, right, or obtuse and as equilateral, isosceles, or scalene.
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Gutenberg's Printing Press
The first mechanical printing device invented by Johannes Gutenberg in the 15th century, leading to the mass production of books and the spread of literacy.
Social Changes
Transformations or shifts in the structure and behavior of a society over time, often driven by cultural, economic, or technological forces.
Internet Addiction
A psychological disorder characterized by excessive or poorly controlled preoccupations, urges, or behaviors regarding internet use leading to distress or impairment.
Social Problem
An issue that affects a significant number of people within a society, recognized as harmful and in need of solution.
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