Did you know...     Kangaroos can’t walk backwards!       Australia is the only continent in the world that doesn’t have a volcano!      Rabbits and Parrots can see what is behind them without turning their head!      Venus is the only planet in the Solar System that rotates clockwise; all others rotate anti-clockwise!      Honey is the only food that doesn’t get spoilt!       Hands and feet have half the bones in the human body!      Apples float in water! That’s because they are made up of 25% air!       Human eyes can see over 10 million colours!       The deepest point in the ocean is the Mariana Trench which is 11km or 6.9 miles deep!      Robert Peary was the first person to reach North Pole in the year 1909!      During the summer months in the Arctic, the sun doesn’t set at all!      The human heart beats 72 times a minute and women’s heart beats faster than men’s!       85% of the world’s plant life is found in the ocean!

Powerful Greek city-states

Powerful Greek city-states

Athens and Sparta, both powerful Greek city-states, had fought as allies in the Greco-Persian Wars between 499 and 449 B.C. In the wake of the Persian retreat, however, Athens grew more powerful and tensions rose, escalating into nearly three decades of war.

powerful Greek city-states

powerful Greek city-states

Source and credits : history.com

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