in my opinion, Alexander the "Great"
you may say its Adolf Hitler and his associate and allied partner Benito Mussolini
Hitler. Because of the Holocaust and all of his beliefs. Well that's worst as in evil, but worst as in just a complete failure.. then it would be Leopoldo Galtieri as he only lasted a few months and was a genuine retard. :)
Mubarak =complete and utter idiot
This is an opinion question. I'd say Josef Stalin of the Soviet Union. He took over all the same countries Hitler did. He had prison labor camps like Hitler. However, Stalin ruled much longer than Hitler, killed more innocent people and killed completely indiscriminatly, as well as executing those closest to him. Not to mention he could completly erase a person from all records.
Pol Pot of Cambodia, the Kims of North Korea, Idi Amin of Uganda, Robert Mugabe of Zimbabwe, Mao Zedong of China are a few that qualify for the sheer misery and number of deaths they have inflicted on 'their' people.
Since the 21'st century is 2000-2100, There were not many leaders. But you can say some Afghan or Iranian leaders were bad. Sorry if i did not fully answer this question.
Their is a lot of great inventions in the past 50 years like the Interent and T.V remote control. I think those are the best in the past 50 years.
Texas by far has had the highest number of tornadoes in the past 50 years.
Possibly because there has been an increase of human population over the past 50 years
All states have had tornadoes in the past 50 years.
Tourism has changed in the past 50 years by 35% and is still on the increase.
actually its exactly the same now as it was 50 years ago
sdfh
Infant death rates have decreased in the past 50 years due to unhealthy economy, lack of food resources and disease .
All of them.
considerably
cats...
they have been increased