<span>The development of many new consumer goods</span>
The start of Civil Wars and Mali's decline was due to struggles over the line of succession, essentially the <span>ordered sequence the people eligible to succeed to the throne if the leader were to be dethroned, die, etc.</span>
I Believe the answer is: Personal records
Personal record revers to a form of primary source which information is derived from the observation or the experiments that being done by the source writers themselves. In most cases, personal records are created by experts on the relevant fields.
I believe that is called archipelago
