Pagume 6 of the tropics, when 11 September of the temperates.

Pagume 6 of the tropics, when 12 September of the temperates.:
I innovated two Complementary Income Tax schedules to discover the economics of Pagume. I also discovered the tropics using the tropical solar year technology which is called the Ethiopian Calendar compared to the temperates solar time technology of Gregorian Calendar.My discovery has taken more than a decay.
Ethiopian calendar belongs to the tropics, when the Gregorian calendar is to the temperates.

Nevertheless, there are two serious problems. The first problem is that the tropics remain undiscovered. The second problem is that the temperate remain re-undiscovered. These two serious problems are observable, because of the fact that both use of Ethiopian calendar only in the current Ethiopia and Gregorian calendar in the tropics are unrealistic. Use of Ethiopian calendar only in the current Ethiopia is unrealistic, because circumference of the current Ethiopia cannot cover 24 hours (half part day and other half night). Use of the Gregorian calendar months in the tropics is unrealistic, because longer variations of day and night, slower rotations and extreme seasons of the temperate which are revealed by the Gregorian calendar months were/are/will not recur in the tropics.
We discovered that unity of Ethiopian calendar months and the tropics and that of Gregorian calendar and the temperates are the unities of theories and practices that demand practices. Therefore, discovering the tropics and rediscovering the temperates are very simple, because the knowledge of realities have no power hiding themselves. For example, today is 14 Tahisas 2005 of the tropics, when 23 December 2012 is of the temperates.
The above discovery and rediscovery do assert that use of Ethiopian calendar in the tropics and use of Gregorian calendar in the temperates are natural and scientific.