Scattering & Gathering of Israel

LDS doctrine teaches that conversion to the gospel by all 12 tribes is a fulfillment of the gathering of Israel

What civilization was the first to "disperse" Israel by taking over the Northern Kingdom in 721 BC?

The final dispersion, temple destruction, and almost complete annhilation of Israel by the Romans was in which year?

Joseph Smith taught that the keys to gathering Israel were restored by the appearance of who?

Which empire then conquered the area during Christ's lifetime and forced rule upon Israel?

In what ways is the gathering of Israel still continuing today?

What famous Book of Mormon figures escaped Jerusalem just before it was captured by Babylon?

What major historical event is commonly recognized by the Christian world as Israel's gathering?

Which 10 tribes of Israel were "lost" in that take-over of the Northern Kingdom?

The Southern Kingdom, consisting mostly of Judah and a mix of others, was then conquered by Babylon in what year?