2021-12-15 Ver1.2 Add map. Add voice.
2021-12-16 Ver1.3 Add continental filter on questions range.
2021-12-23 Ver1.4 Add a question type (the flag from 4 countries name)
2021-12-31 Ver1.5 Add all flag list
2022-01-27 Ver1.6 Add voice gender, color scheme, language change
2022-01-31 Ver1.7 Add country info on a map.