Complex sentence: During the British Raj, signs on the Mall expressly stated: "Indians and Dogs Not Allowed"; racist signs of this type were commonplace in hill stations, which were founded'by and for' the British.
Split into simpler sentences: During the British Raj, signs on the Mall expressly stated: "Indians and Dogs Not Allowed". Racist signs of this type were commonplace in hill stations, which were founded'by and for' the British.