Answer:
Start of the ice age/ meterrite falling and hitting the earth/
Explanation:
Social researchers usually report their methods of finding because probably to tell people where they got their information from which is the source, to make sure its correct and not some propaganda and also to help other social researchers to get new methods of finding research. There are many ways to find research, from people, books, and even the internet.
Saigon was renamed H0 Chi Minh city
Answer:
The Italian city-states were a political phenomenon of small independent states mostly in the central and northern Italian Peninsula between the 9th and the 15th centuries.
After the fall of the Western Roman Empire, urban settlements in Italy generally enjoyed a greater continuity than in the rest of western Europe. Many of these towns were survivors of earlier Etruscan, Umbrian and Roman towns which had existed within the Roman Empire. The republican institutions of Rome had also survived. Some feudal lords existed with a servile labour force and huge tracts of land, but by the 11th century, many cities, including Venice, Milan, Florence, Genoa, Pisa, Lucca, Cremona, Siena, Città di Castello, Perugia, and many others, had become large trading metropoles, able to obtain independence from
