Why did Rome fall? Detailed answer

BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

Why did Rome fall? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Did you know?

Why did Rome fall?

For almost 400 years, the Roman Empire ruled over lands in the Mediterranean and much of Europe. What is now England, France, Belgium, the Netherlands, Spain, Portugal, Switzerland, Austria, Hungary, part of Germany, Romania, Bulgaria, Greece, Turkey, Israel, Syria, Saudi Arabia, Libya, Egypt, Tunisia, Algeria and Morocco - all these territories were ruled by the Romans. Gradually began the decline of the Roman Empire in the West. In contrast to the well-known expression, Rome did not "fall". Between 400 and 430 AD e. Numerous tribes of barbarians invaded the Empire and settled in France, Spain and North Africa.

Gradually they gained independence from the Romans. By 500, all the western parts of the empire - Italy, North Africa, France and Spain - were ruled by Germanic kings independent of Rome. Emperor Diocletian (245-313 AD) divided the Empire in two in 286. Many years after the western part of the Empire "fell", the eastern part was still strong. Its center was in the ancient city of Byzantium, which was later called Constantinople, and still later Istanbul.

For thousands of years this city was the main city of the world and the capital of the Roman Empire in the East. The Empire eventually came to an end when the Turks captured Constantinople in 1453. The Roman Empire existed for two centuries and made a great contribution to the development of civilization, including helping to preserve the literature and science of Greece and transmit it to the modern world.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

What is the solar system?

Probably, you have heard about "flying saucers" and unusual creatures - aliens from other worlds. The veracity of such reports is questioned, but the very possibility of such phenomena is undoubted. The fact is that our solar system is just a tiny part of a huge universe in which millions of other solar systems similar to ours can exist. The concept of the solar system includes the sun and all the bodies revolving around it under the influence of its attraction. Our solar system is made up of planets, satellites, asteroids and comets, all of which are influenced by the Sun's gravitational pull.

Earth is one of the planets, of which there are only nine. The planets are very different from each other in size and many other parameters and are separated from the Sun by different distances.

Mercury is the smallest and closest planet to the Sun. It completes one revolution around the Sun in just 88 days.

Next to it is Venus, which is 108 million kilometers away from the Sun and revolves around it in 225 days.

Earth is the third planet from the Sun, located at a distance of 149,5 million kilometers from it.

Then comes Mars, which is located about 228 million km from the Sun, and its period of revolution is 687 days.

Next comes the largest planet in the solar system - Jupiter, which makes a complete revolution in almost 12 years, and the next Saturn - in 29,5 years.

The last three planets - Uranus, Neptune and Pluto are so far from the Sun that they are even invisible to the naked eye.

Test your knowledge! Did you know...

▪ Why does iron rust?

▪ Where are the largest reserves of water in the solar system?

▪ Who put their Rolls-Royce on the tracks to go hunting?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

Sodium-ion batteries CATL 10.08.2021

Contemporary Amperex Technology (CATL) has unveiled its first-generation sodium-ion battery, as well as its AB battery pack, capable of combining sodium-ion and lithium-ion cells in a single module.

The principle of operation of a sodium-ion battery is similar to that of a lithium-ion battery. Sodium ions also move between the cathode and anode. However, compared to lithium ions, sodium ions have a larger volume and higher requirements regarding the structural stability and kinetic properties of materials. This has become a deterrent to the development of industrial production of sodium-ion batteries.

CATL's innovation was the use of "Prussian white" (Everite salt) material with a higher specific capacitance for the manufacture of the cathode. In addition, the company upgraded the bulk structure of this material by redistributing electrons, which made it possible to solve the problem of a rapid decrease in capacitance during cyclic operation of the material. For the anode, CATL has used a hard carbon material that has a unique porous structure that provides redundant storage capacity and rapid movement of sodium ions, as well as excellent cycling performance.

The first generation of CATL sodium-ion battery, based on a series of new developments in the chemical system, has the advantages of high energy density, fast charging capability, excellent temperature resistance, excellent low temperature performance, high integration efficiency, etc. CATL ion battery can reach 160 Wh/kg, and the battery can be charged in 15 minutes to 80% at room temperature. In addition, under low temperature conditions (-20°C), the sodium-ion battery has a capacity retention rate of over 90%, and its system integration efficiency can reach over 80%. The heat resistance of sodium-ion batteries exceeds national safety requirements for traction batteries. The first generation of sodium-ion batteries can be used in various vehicle electrification applications, especially in regions with ultra-low temperatures, where its advantages become apparent. In addition, it can be flexibly adapted to the application needs of all energy storage scenarios.

The development target for the next generation of sodium-ion batteries is an energy density greater than 200 Wh/kg.

CATL has developed a complete solution for the AB battery system, which consists of mixing and matching sodium-ion and lithium-ion batteries in a certain ratio and integrating them into one battery system, and managing different battery systems through high-precision BMS algorithm. The AB battery system can compensate for the current lack of energy density in the sodium-ion battery, as well as expand its advantages in terms of high power and performance at low temperatures. This groundbreaking structural system expands the applications of lithium-sodium battery systems.

Other interesting news:

▪ With a load on my head

▪ Intel SSD 660p based on QLC 3D NAND

▪ Molecule for collecting and storing solar energy

▪ Triple Differential Receiver AD814

▪ Powerful AMD SoCs

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the Radio Control website. Article selection

▪ Sword of Damocles article. Popular expression

▪ article How much does our skeleton weigh? Detailed answer

▪ Article Common cranberry. Legends, cultivation, methods of application

▪ article Washing machines. Encyclopedia of radio electronics and electrical engineering

▪ article Experience with the center of gravity of the human body. physical experiment

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews