@frnando,
Eratosthenes Did It First, 800 Years Before Muhammed
It's simple
Why did God create man on earth?
Of course
To unite the one God and walk straight on
the road and reconstruction of the ground
From the beginning of Adam peace be upon him,
and Noah and Abraham and Lot and Hood and
Shuaib, Elias, Jacob, Joseph ....... Solomon,
Moses, Jesus and Muhammad peace be upon them
All the prophets, their message is one
Of different races
Bani Israel .... And the Arabs
But
People do not want to recognize this fact
Everyone is on the whims
So God says in the Holy Qur'an
(122) Then his Lord chose him and turned to
him in forgiveness and guided [him].
(123) [ Allah ] said, "Descend from Paradise
- all, [your descendants] being enemies to
one another. And if there should come to you
guidance from Me - then whoever follows My
guidance will neither go astray [in the
world] nor suffer [in the Hereafter].
(124) And whoever turns away from My
remembrance - indeed, he will have a
depressed life, and We will gather him on the
Day of Resurrection blind."
(125) He will say, "My Lord, why have you
raised me blind while I was [once] seeing?"
(126) [ Allah ] will say, "Thus did Our signs
come to you, and you forgot them; and thus
will you this Day be forgotten."
(127) And thus do We recompense he who
transgressed and did not believe in the signs
of his Lord. And the punishment of the
Hereafter is more severe and more enduring.
(12 Then, has it not become clear to them
how many generations We destroyed before them
as they walk among their dwellings? Indeed in
that are signs for those of intelligence.
(38 We said, "Go down from it, all of you.
And when guidance comes to you from Me,
whoever follows My guidance – there will be
no fear concerning them, nor will they
grieve.
(39) And those who disbelieve and deny Our
signs – those will be companions of the Fire;
they will abide therein eternally."
(40) O Children of Israel, remember My favor
which I have bestowed upon you and fulfill My
covenant [upon you] that I will fulfill your
covenant [from Me], and be afraid of [only]
Me.
(41) And believe in what I have sent down
confirming that which is [already] with you,
and be not the first to disbelieve in it. And
do not exchange My signs for a small price,
and fear [only] Me.
(42) And do not mix the truth with falsehood
or conceal the truth while you know [it].
(43) And establish prayer and give zak h and
bow with those who bow [in worship and
obedience].
Narated By Abu Huraira : I heard Allah's
Apostle saying, "I am the nearest of all the
people to the son of Mary, and all the
prophets are paternal brothers, and there has
been no prophet between me and him (i.e.
Jesus)."
Sahih al-Bukhary, The Book of Prophets,
Hadith Number:3480, Narrated by: Abu-Huraira
Narated By Abu Huraira : Allah's Apostle
said, "Both in this world and in the
Hereafter, I am the nearest of all the people
to Jesus, the son of Mary. The prophets are
paternal brothers; their mothers are
different, but their religion is one."
Sahih al-Bukhary, The Book of Prophets,
Hadith Number:3481, Narrated by: Abu-Huraira