Answer:
National memory is a form of collective memory defined by shared experiences and culture. It is an integral part to national identity. ... According to Lorraine Ryan, national memory is based on the public's reception of national historic narratives and the ability of people to affirm the legitimacy of these narratives.The collective memories of a people can change over generations. ... Collective national memories are not fixed but change with the times. Collective remembering implies that collective forgetting also occurs, and we have studied such forgetting in a particular context: how rapidly presidents are forgotten.
The Roman Empire was founded when Augustus Caesar proclaimed himself the first emperor of Rome in 31BC and came to an end with the fall of Constantinople in 1453CE. ( is that what you need?)
This illustrates "inattentional blindness".
Inattentional blindness which is otherwise called perceptual blindness is a mental absence of consideration that isn't related with any vision deformities or shortages. It might be additionally characterized as the occasion in which an individual neglects to see an unexpected stimulus that is on display. Inattentional blindness basically implies that you miss something directly before you.
Answer: His video clip should be shorter than 30 seconds.
Explanation: A five minute video clip is a tad bit long for a speech. The video will have been okay if his presentation was a video presentation. But giving a speech and playing a video that long was bound to make the audience distracted and bored.