It was the northernmost of several Muslim states in the Horn of Africa , as a buffer between the Muslim kingdom and the Christian states along coastal regions .
It was the northernmost of several Muslim states in the Horn of Africa and served as a buffer between the Christian Kingdom and the Muslim states along coastal regions .

Are these two sentences paraphrases of each other?
no

The tram line was built in 1913 and expanded in 1923 and abandoned in 1983 .
The tram line was built in 1913 , expanded in 1923 and abandoned in 1983 .

Are these two sentences paraphrases of each other?
yes

It was created on July 18th , 1914 for the pharmacist and businessman William Horlick , brother of James Horlick .
It was created on July 18 , 1914 for the pharmacist and businessman James Horlick , the brother of William Horlick .

Are these two sentences paraphrases of each other?
no

Stella was born in Kano State , Northern Nigeria in the family of Felix Ebelechukwu and Margaret Modebelu , descents of Nnewi in Anambra State .
Stella was born in Nnewi Northern Nigeria into the family of Felix Ebelechukwu and Margaret Modebelu , descents of Anambra State in Kano State .

Are these two sentences paraphrases of each other?
no