Last Saturday, I heard my colleague taught his students that there are about 290 million people in the United States. After the class, I told him that United States' population should have exceeded 300 million.
As this case, the change of geographical data happens freqtently.
Today, I noticed the following changes. the numbers listed on left are the data I knew in my elementary school days. the numbers listed on right are the latest data.
・The population of India
900 million → 1200 million
・The population of Nigeria
90 million → 150 million
・Independence
South of Sudan → Republic of South Sudan
part of Indonesia → East Timor
・Developed countries in Asia and Africa
Japan, South Africa → Japan, South Korea, Taiwan, Hong Kong, Singapore, Israel
