If this is a true or false question, yes this is true since information of the periods of time in the A.D. era are still not 100% accurate, and there's many questions regarding the actual events leading up to others, and questions about specific resources/items that were able to be recovered FROM those time periods.
Better climate maybe and more available resources.
Demands by Cuban patriots for independence
1. The wars were won with few civilian deaths
2. Al-Qaeda carried out the largest terrorist attack against the United States on this date.
3. By keeping information about suspected terrorist a secret.
4. To kill as many Americans as possible and damage the US economy.
5. The Taliban allowed Al-Qaeda to use its country as a base.
I hope this helps!!!!!!