Who is the greatest person in history?

Hello people,

A few months ago there in Ukraine has started project 'Great Ukrainians'. This is voting for the most important human, who had some influence or has made some benefit to Ukraine. As for me I have many such a great. They are writers: T.Shevchenko, M.Khvilioviy, I.Franko; hetmans: B.Hmelnickiy, Vishneveckiy; and commanders 
of Ukrainian Insurgent Army: Stepan Bandera and Roman Shuhevich. It's a pity but for many Ukrainians they are like  Hitler in Germany.

So, I'd like to hear who is the greatest person for you in your or world history. And it will be good to know Ukrainians' opinion about people who I've mention above.

GNO-KUN IN DRAGON BALL….HE SAVED OUR WORLD FROM ALIENS …. 

 I'M KIDDING YOU.....HAVE FUN…MY FRIEND….COOL!

no it's albert hoffman

Muhammed is the greatest person in history

Muhammed صلى الله عليه وسلم

and jewels who is me

Nikola Tesla.

our prophet "Muhammed" peace be upon him

Muhammad

 MAHATMA GANDHI ,,,Speaking on the character of Muhammad (pbuh) says in YOUNG INDIA:

n      "I wanted to know the best of one who holds today's undisputed sway over the hearts of millions of mankind..

n       I became more than convinced that it was not the sword that won a place for Islam in those days in the scheme of life.

Muhammad 

 MICHAEL H. HART in his book on Ratings of Men He ranked Mohammed first in the list,  who contributed towards the benefit and uplift of mankind:

"My choice of Muhammad to lead the list of the world's most influential persons may surprise some readers and may be questioned by others, but he was the only man in history who was supremely successful on both the religious and secular levels."  

(M.H. Hart, THE 100: A RANKING OF THE MOST INFLUENTIAL PERSONS IN HISTORY, New York, 1978, p. 33)

the greatest person is with no doubt prophet muhammed(pease be upon him). Know more about him through this link http://www.islamway.com/mohammad

the greatest person in history is Muhammed peace be upon him