Final answer:
Civilizations have introduced lasting innovations but did not spread simultaneously. The spread of civilizations was often facilitated by trade, leading to cultural exchanges and sometimes the transformation of existing cultures. Civilizations spread at different paces and influenced each other culturally and technologically over time.
Step-by-step explanation:
Throughout history, civilizations have developed innovations that have contributed significantly to human progress. These innovations from early civilizations have often been sustained over time and have not needed to be reinvented. However, it is important to note that civilizations did not spread simultaneously. Each civilization grew and expanded in their unique ways, especially during times when large structures were constructed without modern equipment, and when agricultural developments allowed for a stable and discernible culture.
Trade played a critical role in the spread of civilizations. As trade connections were established, cultural exchanges took place, leading to the broadening of horizons and improvement in lives. This exchange also sometimes led to the undermining and transformation of existing cultures, as seen with the European colonial expansion's impact on other cultures around the world. The spread of a civilization and its cultural influences resulted in many enduring changes, some of which were liberating and others that were disruptive to the established ways of life.