í The word chronology originates from a Greek word, "chrono" which means time and "logos" which is a treatise or study. Therefore this word can be defined as the science that studies and specifies the order and dates of historical events, this process or science organizes or orders in a successive or gradual way each event that occurs in the world at a certain time and space. This science is very important for history since history is the science that studies the past of humanity and, as it was said, helps to organize each important event that happened in the world gradually.
It is important to note that chronology was a science created by man to have a greater conception or understanding of historical events and have a particular order of them by dates. The chronology uses a timeline to organize each fact or event of vital importance to humanity. Then we understand by chronology, the science whose objective is the study of the gradual order of dates of historical events; also chronology is called the set of historical events organized according to the date that happened, likewise this word refers to a system or procedure of measuring time and determining or agreeing dates.
The chronology focuses on the idea that each and every one of the facts are intertwined with each other, and therefore it is of utmost importance to order and classify them in such a way to have a better understanding of them, therefore said science resorts to different numerical and data systems that seek to organize the oldest events first and the most recent events last, and this is where the timeline comes into play.
