A connection between Northern Democrats, Free-Soilers, and Conscience Whigs in 1854 was that they...

1. nominated Abraham Lincoln for President.
2. formed the Republican Party.
3. passed the Missouri Compromise.
4. sponsored the Kansas-Nebraska Act.

the chinese communist party (ccp);

explanation:

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.

in 1989, tiananmen square in beijing was the site of china’s main industries. china’s government headquarters. -pro-democracy demonstrations. (second choice)