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Civilization grew and expanded into the vastness of space in the middle and late 3rd millenium becoming a type 1 civilization. With rapid advances in technology ever more present humanity soon out grew their solar system and ventured off into the galaxy. By the end of the 4th millenium humanity has become a type 2 civilization and conquered their own galaxy, but even then it too was out grown. Now in the 41st century humanity not only colonized their home galaxy but also other galaxies.