It is interesting to get the comparisons:
Chinese Anti-Japanese War (1931 - 1945), 14 years, while WW2 occurred from 1939-1945, only six years.
Britain called:
Second Sino-Japanese War, (1937–45), conflict that broke out when China began a full-scale resistance to the expansion of Japanese influence
When Japan was finally defeated in 1945, China was on the winning side, but lay devastated, having suffered some 15 million deaths, massive destruction of industrial infrastructure and agricultural production, and the shattering of the tentative modernization begun by the Nationalist government.
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here are some events arranged in chronological order:
The Big Bang - estimated to have occurred around 13.8 billion years ago
The emergence of life on Earth - estimated to have occurred around 3.5 billion years ago
The development of human civilization - estimated to have begun around 5,000-10,000 years ago
The Age of Exploration - began in the 15th century and continued through the 17th century
The Industrial Revolution - began in the late 18th century and continued through the 19th century
World War I - occurred from 1914-1918
World War II - occurred from 1939-1945, the deadliest and most destructive war in history. Before the war, Germany, America, and the rest of the world were going through the Great Depression.
The Space Race - began in the mid-20th century and continued through the 1960s
The Digital Revolution - began in the late 20th century and continues to the present day
The COVID-19 pandemic - began in 2019 and continues to impact the world today.