Answer:
Despite the relatively short period of time, the period represented an era of significant changes worldwide. Petroleum-based energy production and associated mechanisation expanded dramatically leading to the Roaring Twenties, a period of economic prosperity and growth for the middle class in North America, Europe, Asia and many other parts of the world. Automobiles, electric lighting, radio broadcasts and more became common among populations in the developed world. The indulgences of the era subsequently were followed by the Great Depression, an unprecedented worldwide economic downturn that severely damaged many of the world's largest economies.
Explanation:
The answer is secondary source because the historian may be an expert but he would have to be present in the event/topic to be considered a primary source. Another example of secondary source is history books because they detail events accurately but the books are not from when the event occurred.
Answer:
The most straightforward theory for Western Rome’s collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire’s borders. The Romans weathered a Germanic uprising in the late fourth century, but in 410 the Visigoth King Alaric successfully sacked the city of Rome. The Empire spent the next several decades under constant threat before “the Eternal City” was raided again in 455, this time by the Vandals. Finally, in 476, the Germanic leader Odoacer staged a revolt and deposed the Emperor Romulus Augustulus. From then on, no Roman emperor would ever again rule from a post in Italy, leading many to cite 476 as the year the Western Empire suffered its deathblow.
Explanation:
Answer:
Hope this helps
Explanation:
Definitely 1 Geographic conditions
The sea makes up 70% of the earth! Also, there might be places we haven't discovered too small to see from space!