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Season
- Season 1 1999-04-12
- Season 2 1970-01-01
- Season 3 1970-01-01
- Season 4 2002-01-01
- Season 5 2003-05-11
- Season 6 2004-04-12
- Season 7 2005-01-01
- Season 8 2006-01-01
- Season 9 2007-01-01
- Season 10 2008-01-01
- Season 11 2009-08-15
- Season 12 2010-02-23
- Season 13 2011-10-06
- Season 14 2012-08-17
- Season 15 2013-01-01
- Season 16 2014-03-30
- Season 17 2015-01-10
- Season 18 2016-01-09
- Season 19 2017-01-15
- Season 20 2018-01-14
- Season 21 2019-01-20
- Season 22 2020-01-18
- Season 23 2021-01-04
- Season 24 2022-01-23
- Season 25 2023-01-22
- Season 26 2024-01-21
Season 26 Episode
- Season 20 Unit 731: Elite Doctors and Human Experimentation
- Season 20 With Ayumi
- Season 20 Kuroshio: Wondrous Current of Life
- Season 20 Home Gadgets at Risk
- Season 20 Research Misconduct: Japanese Science in Question
- Season 20 Wrongful Conviction: 20 Lost Years
- Season 20 Lives Shaped by Loss: 23 Years After the Kobe Earthquake
- Season 20 China's Westward March
- Season 20 River Tsunami: Lessons Seven Years Later
- Season 20 Radioactive Forest 2018: Cycle of Contamination
- Season 20 Disaster Trauma: Mother-Child Dialogue
- Season 20 Meltdown: Cooling Water Crisis
- Season 20 Ghost Blood Vessels
- Season 20 Cryptocurrency War
- Season 20 Shrinking Japan: Tackling a Worker Shortage
- Season 20 Missing Workers
- Season 20 THE BODY: Our Remarkable Inner Network
- Season 20 THE BODY: Kidneys - Keys to Health and Longevity
- Season 20 My Grandfather's War: Battle of Luzon
- Season 20 Station Children: Japanese Orphans of WWⅡ
- Season 20 THE BODY: Fat and Muscle - Powerful Allies for Health
- Season 20 THE BODY: Bones - Fountain of Youth and Power
- Season 20 THE BODY: Gut - Key to a Healthy Immune System
- Season 20 Nebuta 2018: Love and Rivalry
- Season 20 A Big Circus Family
- Season 20 THE BODY: Brain - Mechanisms of Inspiration and Memory
- Season 20 THE BODY: The Beginnings of Life - Prenatal Chats of Mother and Baby
- Season 20 THE BODY: Longevity - Secrets of Aging Well
- Season 20 Sperm Crisis
- Season 20 Finding Einstein's Brain
- Season 20 Hiroshima: Solving the Genetic Puzzle
- Season 20 AI: Shaping the Future
- Season 20 Roots of TOKYO: Edo, City of Water
- Season 20 Roots of TOKYO: Edo, City of Fire
NHK Documentary - Season 20 Episode 33 Roots of TOKYO: Edo, City of Water
0.00 57 minutes More than 150 years ago, Tokyo was called Edo. It had the highest population of any city in the world, surpassing both London and Paris. But how did the world's largest city come to emerge in a remote corner of Asia? Clues are coming to light not only in Tokyo but also around the world. One drawing shows the castle surrounded by a water-filled moat, which turns out to be a crucial element that enabled Edo to expand further. Let's experience the mystery and wonder of Tokyo 150 years ago.
