Over the years, they have evolved to incorporate symbols ... used national flag in the world, the Danish flag features an uneven white cross on a red background. The cross represents Christianity.

Until the Executive Order of June 24, 1912, neither the order of the stars nor the proportions of the flag was prescribed. Consequently, flags dating before this period sometimes show unusual ...

It’s an inversion of the Swiss flag (a white cross on a red background ... So, since 1876, some countries have used a red crescent emblem in the same way as other countries used the red cross emblem.