Answer:
As emperor, Charlemagne stood out for his many reforms—monetary, governmental, military, cultural, and ecclesiastical. He was the main initiator and proponent of the “Carolingian Renaissance,” the first of three medieval renaissances. It was a period of cultural activity in the Carolingian Empire occurring from the late-8th century to the 9th century, taking inspiration from the Christian Roman Empire of the 4th century. During this period there was an expansion of literature, writing, the arts, architecture, jurisprudence, liturgical reforms, and scriptural studies.
Explanation:
(1) data triangulation: the use of multiple data sources in a single study; (2) investigator triangulation: the use of multiple investigators/research- ers to study a particular phenomenon; (3) theory triangulation
presidential candidate's tax records
