What happened to constantinople in 1453?
a) it was conquered by the roman empire.
b) it was destroyed by a massive earthquake.
c) it was conquered and renamed istanbul by the ottomans.
eliminate
d) it was destroyed by the invading forces of genghis khan.

c. as a force against soviet invasion of afghanistan

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

answer; i believe that the correct answer is (tobacco);

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.