1月4日的Historical Flags应用程序分析

Do you know what your country's flags have looked like over the years. This application is there to check it. The application contains all the historical flags of each country. Countries are grouped into regions corresponding to continents. Each country has a list of flags with a breakdown into the years from which the flag was the official flag of the country. In cases where a country was divided or in the midst of an armed conflict, there may be more than one flag for a given period.