Identification terms (long answer) the following terms:1- Abbasids.2- Charlemagn

Identification terms (long answer) the following terms:1- Abbasids.2- Charlemagne.3- Constantine.4- Constitution of Medina.5- Dar al-Islam.6- Gregory the Great.7- Justinian I.8- Third Century Crisis.Each term should be the answer of these questions and an small essay. The questions are Who What When Where What happened Why important.Each Identification should be around 6 and 7 sentences.Be sure to write easy words and easy vocabularies. Because I am international student and my English writing is very weak. Also I want to be free plagiarism.