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Who First Used Keys?
The first known form of lock and key was used by the Assyrians in the Middle East about 4,000 years ago. This was revealed…
Why India Wants to Color-code Its Passports?
In India, the rich and poor inhabit vastly different worlds. Now, many fear, new government rules will deepen that divide with different-co
How Do Passport Covers Get Their Colors?
It’s often assumed that passport covers can only be made in shades of blue, black, green, and red. And generally speaking, it’s pretty m
Why Do We Need Passports?
Passports have been used for centuries as a means of identifying and protecting people traveling in foreign countries in times of both peace
What Is the Tennessee Valley Authority?
The Tennessee Valley Authority (TVA) is a United States government agency established in 1933 to control floods, improve navigation, manufac