1 00:00:00,000 --> 00:00:14,859 Evolution of Cities 2 00:00:14,859 --> 00:00:33,859 The first cities emerged thousands of years ago in fertile regions, such as Araidu, Uruk, and Ur, which were formed in the historical region of Mesopotamia approximately 7,500 BCE between the Euphrates and Tigris rivers, there were several towns and cities. 3 00:00:33,859 --> 00:00:47,259 As humans started to produce crops and build settlements, cities also developed around the Nile River in Egypt, the Indus River Valley on the Indian subcontinent, and the Yellow or Huang River in China. 4 00:00:47,560 --> 00:00:57,880 Because of the abundance of food, people were able to abandon their nomadic way of life as hunters and gatherers thanks to agricultural development in these rich regions. 5 00:00:57,880 --> 00:01:03,880 Choosing to settle near waterways also provided a crucial transit network that aided in trade. 6 00:01:03,880 --> 00:01:10,879 Cities kept expanding during the following millennia in terms of population, area, and importance. 7 00:01:10,879 --> 00:01:18,879 Some of the major cities in the world have expanded steadily for several hundred years, while others seem to grow quickly. 8 00:01:18,879 --> 00:01:25,879 The major cities of Mesopotamia, which were once among the world's most populous, no longer exist, 9 00:01:25,879 --> 00:01:29,640 and the population of smaller cities has decreased. 10 00:01:29,640 --> 00:01:36,219 For instance, Rome, Italy, had over a million residents in the 1st century BCE, making it 11 00:01:36,219 --> 00:01:38,379 the biggest metropolis in Europe. 12 00:01:38,379 --> 00:01:43,780 But, by the Middle Ages, just 20,000 people remained there. 13 00:01:43,780 --> 00:01:45,439 These are the outliers. 14 00:01:45,439 --> 00:01:52,200 The majority of cities around the world are expanding, some at previously unheard of rates. 15 00:01:52,200 --> 00:01:58,099 have always attracted people because they are hubs for trade, culture, education, and 16 00:01:58,099 --> 00:02:05,400 economic opportunity, but the population growth that has resulted has not always been consistent. 17 00:02:05,400 --> 00:02:10,780 Urbanization is a relatively new phenomena. Prior to the last few decades, most people 18 00:02:10,780 --> 00:02:18,539 lived in rural areas. For instance, in 1800 CE, rural areas were home to more than 90% 19 00:02:18,539 --> 00:02:20,879 of the world's population. 20 00:02:20,879 --> 00:02:26,539 According to the United States Census Bureau, more than 94 percent of Americans resided 21 00:02:26,539 --> 00:02:29,159 in rural areas in 1800. 22 00:02:29,159 --> 00:02:34,080 By 1900, this proportion had fallen to 60 percent. 23 00:02:34,080 --> 00:02:39,120 The Industrial Revolution, which started in England in the middle of the 18th century 24 00:02:39,120 --> 00:02:44,860 and later moved to the United States and other parts of Europe, was a major contributor to 25 00:02:44,860 --> 00:02:46,879 the growth of cities. 26 00:02:46,879 --> 00:02:51,699 As industries expanded as a result of the Industrial Revolution, there was an urban 27 00:02:51,699 --> 00:02:53,759 labor shortage. 28 00:02:53,759 --> 00:02:58,500 Millions more individuals in the United States and England relocated from fields to cities 29 00:02:58,500 --> 00:03:01,639 during the course of the following century. 30 00:03:01,639 --> 00:03:06,580 Other parts of the world also urbanized as a result of industrialization. 31 00:03:06,580 --> 00:03:12,800 The population of London, England, increased from one million in 1800 to over six million 32 00:03:12,800 --> 00:03:19,840 a decade later in large part due to the industrial revolution and this so second industrial revolution 33 00:03:19,840 --> 00:03:25,840 accelerated urbanization in the united states within a few decades causing the new york city 34 00:03:25,840 --> 00:03:32,240 metropolitan area to surpass all other cities in the world in terms of population by 1950 35 00:03:32,960 --> 00:03:39,360 new technologies particularly those that allowed cities to rise vertically have also contributed 36 00:03:39,360 --> 00:03:46,159 to the growth of the urban population skyscrapers were made possible by steel innovations allowing 37 00:03:46,159 --> 00:03:52,800 for higher population densities of course skyscrapers could now transport people to 38 00:03:52,800 --> 00:03:58,560 their apartments and offices in the sky thanks to the introduction of the elevator according 39 00:03:58,560 --> 00:04:04,479 to experts more than half of the world's population already resides in cities and by the 40 00:04:04,479 --> 00:04:10,360 year 2050, that number will have increased to about two-thirds. 41 00:04:10,360 --> 00:04:15,919 Natural increase, or births to people already residing in cities, as well as the ongoing 42 00:04:15,919 --> 00:04:21,100 movement of people from rural to urban regions in quest of better opportunities account for 43 00:04:21,100 --> 00:04:24,040 a large portion of this expansion. 44 00:04:24,040 --> 00:04:29,899 A new sort of metropolis, known as a megacity, which is characterized by having a population 45 00:04:29,899 --> 00:04:35,779 of more than 10 million, has emerged as a result of urbanization in recent years. 46 00:04:35,779 --> 00:04:41,319 The world's first megacities emerged in the 1950s with the metropolitan areas of New York 47 00:04:41,319 --> 00:04:44,100 City and Tokyo, Japan. 48 00:04:44,100 --> 00:04:49,480 By 2018, there were 37 megacities worldwide. 49 00:04:49,480 --> 00:04:54,779 While North America and Europe had the biggest cities during the Industrial Revolution, today's 50 00:04:54,779 --> 00:05:00,259 Its fastest-growing cities are in Asia and Africa as a result of industrialization. 51 00:05:00,259 --> 00:05:04,740 Tokyo is the largest urban area in the world as of 2019. 52 00:05:04,740 --> 00:05:09,720 Delhi, India, has over 30 million citizens. 53 00:05:09,720 --> 00:05:13,379 There are metropolitan areas in Shanghai, China. 54 00:05:13,379 --> 00:05:15,899 Mexico City, Mexico. 55 00:05:15,899 --> 00:05:20,420 And São Paulo, Brazil with population over 20 million. 56 00:05:20,420 --> 00:05:25,660 The development of today's cities must be understood while looking into the future. 57 00:05:25,660 --> 00:05:32,180 By 2030, the United Nations projects that there will be 41 megacities. 58 00:05:32,180 --> 00:05:37,740 India currently has five cities with metropolitan areas of more than 10 million people, and 59 00:05:37,740 --> 00:05:42,540 by 2030 that number is anticipated to rise to seven. 60 00:05:42,540 --> 00:05:47,060 You might be surprised to learn that some of the megacities are located in unexpected 61 00:05:47,060 --> 00:05:53,180 places, including Kinshasa, the capital of the Democratic Republic of the Congo. 62 00:05:53,180 --> 00:05:59,779 Kinshasa is already a megacity with a population of 11.6 million, but demographics and growth 63 00:05:59,779 --> 00:06:05,300 patterns indicate that it may soon overtake some of the biggest cities in the world. 64 00:06:05,300 --> 00:06:11,000 Cities in Africa and Asia are striving to meet the needs of quickly expanding populations. 65 00:06:11,000 --> 00:06:15,939 Just as rapidly expanding cities in England and North America battle to do so throughout 66 00:06:15,939 --> 00:06:21,339 The Industrial Era Around two-thirds of the 12.6 million residents 67 00:06:21,339 --> 00:06:27,540 of Lagos, Nigeria, the largest city in Africa, reside in slums. 68 00:06:27,540 --> 00:06:33,860 Due to high birth rates rather than migration to the city, the population is still expanding. 69 00:06:33,860 --> 00:06:39,259 Despite the negative effects of rapid population growth, which range from slum expansion to 70 00:06:39,259 --> 00:06:45,660 increased traffic congestion, the population of the world's megacities is still rising. 71 00:06:45,660 --> 00:06:49,620 the short journey towards understanding the evolutions of cities around the 72 00:06:49,620 --> 00:06:56,779 world stay tuned for more upcoming excited videos thank you