Answer:
Not leaving a heir to the throne cause a shift to the royal blood line.
Explanation:
Answer:
Algebra
Astrolabe
Hard soap
Windmill
Explanation:
The Islamic Golden Age was a period in the history of Islam where its ideas and cultural movement flourished and which brought about several discoveries that were both scientific, economical, etc.
This Golden Age lasted from the eighth century, until the fourteenth century.
This period began under the reign of Abbasid caliph Harun al-Rashid when he brought scholars to translate classical texts into Arabic.
Some of the inventions which originated during the Islamic Golden Age are astrolabe, hard soap, windmill and algebra.
The answer is b)to train ministers
The invasions of Germanic groups led to a series of negative changes . Three effects of the Germanic invasions were halt on trade. Transportation of goods became unsafe. Less people were educated, and Europe no longer had one spoken language, unable to be understood by all.