Human has been offender and on blunder since Adam's ale.When human being was made the angels of God ,raised the arguments that this is figure of ruin as well.But God is omni-potent He knew better.So to say, Adam committed mistake and was banished from the heaven towards deserted spot.
"Both Adam and Eve were on mistake",Holy Quran.
After all ,the time had lapsed and Adam with his wife used to spend life on earth for the rest of years.Then, his sons made mistake on slight issue of the marriage .Hence, elder brother killed younger brother for the sake of own wish to take his choice of girl.No doubt ,People are key of sins.By the way, the time had been booked into historical fiction.And the nations did the same as man has to be.The nations waged routine wars day by day ,the large number of innocents ,women etc,were undermined as well as subverted .The nations of Noah, Musa,Younus ,Loot ,Devid were led onto the destroyed conditions.These were what! Indeed Man is cardinal sinner. Hitherto, in the modern era, man is making mistakes , galloping thousands of lives of the peoples.Talibans that are scattering violation into the entire world , snatching lives of people by blasting bombs, devastating peace and so on.The world war first and second are unanswerable loss for the earth.Means to say, Human of till today is immerced in hatred , proudness , prejudice and greediness.So ,there is a saying every event has cause, the outcome can not be neglected . Today's man is besieged with the countless and mountains of diseases ,as the world is making headway, on the other hand it has been crushed under the darkness of the majority of problems.Concludingly, man wholeheartedly tries his best to avoid from blunders and refrains from errors, but everytime kisses the dust from the destiny ,because to err is Human.