When Facebook and Twitter will merge in 2019

Facebook will be merging its online advertising business with Twitter.

The announcement was made Wednesday.

Facebook is buying the Twitter-owned company for $19 billion.

That makes it the world’s biggest publicly traded social network.

Twitter is the world champion of messaging, and has had a rough time in recent years with the election of President Donald Trump and the turmoil that followed it.

Facebook is in its sixth year as a public company and Twitter’s fifth.

It also has an ad-tech business.