Without discovering the tropics and rediscovering the temperates acting as world or any country leader is neither civilized nor scientific.But, discovering the tropics and rediscovering the temperates are very simple.Because the knowledge of realities have no power hiding themselves. For example, English is not time. Because it does know neither Pagume nor 12 months of 30 days.But Pagume does use English to reveal the tropics compared to the temperates.