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The first to speak of Earth's gravity.

2
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Abu al-Qasim Ubayd Allah
ibn Abd Allah ibn Khordadbeh said.

3
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He died in 280 AH. In his book
Al-Masalik wal-Mamalik, page 4.

4
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Description of the Earth.
He died in 280.

5
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The Earth is spherical, like a ball,
set in the sphere like the yolk in an egg.

6
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And the air around the Earth draws it
from all sides toward the sphere.

7
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Creatures on Earth are made so the air
draws what is light in their bodies.

8
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The Earth, in turn, draws what is heavy
in their bodies.

9
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For the Earth is like the stone that
draws iron, meaning a magnet.

10
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So to say that Newton was the first to
speak of gravity is incorrect.

11
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Muslims were the first to discover
Earth's gravity.

12
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But Newton formulated the three
well-known laws of gravity.