That that was called "the perfect battle", the Battle of Austerlitz, which had been carried out exactly as planned by Napoleon.
In my opinion also the first part of the same campaign, that is the "manoeuvre on Ulm", which led to the encirclement and surrendering of an Austrian army of 50,000 men under Gen. Mack in Ulm is worth of being recorded as a component of the aforesaid greatest military accomplishment.
the continental system
Trafalgar, a battle he lost to the English due to his crossing of the T's (naval tactic) and their flag communication.
The two greatest achievements in Rome are in the areas of architecture and law.
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It may be debatable, however, considering the spiritual and worldly achievements together, we can safely say that the Muslim Empire under the rule of second righteous Caliph Hazrat Umar Farooq (RAU) made the greatest achievements.
the Napoleonic Code
Many people would consider that the creation of the Code Napoleon, which is a body of law that remains part (but is not all) of the French legal system to this day, is among his greatest achievements.
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the continental system
Trafalgar, a battle he lost to the English due to his crossing of the T's (naval tactic) and their flag communication.
Their greatest achievements were made in Mathematics and Medicine/engineering.
Becoming One Of The 3 Greatest Painters To Exist . :)
what is Bill Gates greatest achievements
There are a number of achievements that Serena Williams may consider her greatest. Some consider her fame her greatest achievement.
one of his greatest achievements were he was the first European astronomer to change the medieval belief system =)
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One of Liberia's greatest achievements is having the first Women president (Ellen Johnson) on the continent of Africa.