But the title of the Declaration of Independence doesn't include the word colony or colonies. Nor does the name of the country, United States of America.Colonies
If Picard's 150 figure meant only species homeworlds, and not all members, then the 150 would include Earth but not Mars.It's also possible that among the worlds counted are multiple worlds within a single star system (Earth and Mars may be counted as two member worlds in the Sol System ...)
The Federation's membership count might not have been a steady uninterrupted upwards climb, there could have been periods of decline in membership after individual or blocks of members left. The 150 figure might not have been a case of the number rising to that number, but having fallen to that number after being much higher previously.The rate of the Federation's expansion may not always be constant. There could be periods where it was high and periods where it may even have been stagnant.
