There were, only hourglasses to measure time.
Today, there are digital clocks.
In the future, there will be smart watches.
In the past, people used carts to get around.
Nowadays, people use their gasoline cars to transport themselves.
In the future, cars will be electric.
In the past, children played whit the ball.
Nowadays, people children play board games.
In the future, children will play virtual games.
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