Thresholds provides an outline guide of big history.It frames the story and navigates through it.There are eight thresholds, each threshold marks a step in increasing complexity.The first threshold starts off with the Big Bang and then remarkably, more complex things appear.Such as stars to new chemical elements to planets then to the most dangerous creative things that lived on this planet.It makes people wonder where the journey stops and what will the result be.It shows how the Universe gets non complex over time.Similarly, the history of bananas marks the changes in bananas that took place overtime.Bananas are the most popular of tropical fruit and of Old World origin.The popular name “banana” was given by the Arabian slave traders.Bananas
