Pasturella pestis, also called the Black Death or plague, remained unknown for 500 years. This deadly death began in the middle of the 13th century and quickly spread beyond the borders of Sicily, where he was transported with the sick sailors to the Black Sea merchant ship. The plague spread widely across Central Asia, reached most European countries, and literally spread from India to Iceland. Having mercilessly eroded half the population, it has become a real threat for the times. People of that era could admit that the infection came from close physical contact with the sick and their clothes, their homes and infected the bloodstream and another infected the lungs, and in this case the death spread through the air and caused a respiratory infection. The symptoms were almost the same for everyone; the sick suffered from acute pain and died quickly. Looking back at the historical events described by Barbara Tuchman in her novel, we could recognize them not only as a narration of medieval stories and compiled facts, but also take them to a deeper consideration of all the alterations and transitions that the human race has gone through. Our civilized world is very different, we have made global progress in any scientific field for example, but have human relationships also developed or do we remain the same common approach in our moral standards and reactions, in particularly in cases such as facing death? The first thing that may outrage the reader is that the spread of the disease, which has killed hundreds and thousands of lives around the world, could be stopped simply by adhering to basic sanitary rules. Furthermore, none of the leaders of that era ordered... middle of paper... to quickly calculate our life requirements several years in advance. Contemporary reports of 14th century deaths may be more complete. If they had been carefully and precise, arranging all the facts and information in chronological order, we could have a better understanding and more knowledge about that era, sometimes the historical facts could even prevent a new threat or at least have an idea of how to overcome, maintain and fight. . Due to the lack of information derived from the manuscripts, we have had to carefully gather and compile information from different sources and piece together facts based on concise and erratic reports or memories from that time, but in a chronological order it would help. For example, we don't yet know how many people died. Despite the vast difference between people in contemporary and medieval times, there is something that will remain timeless: human behavior..