Why did divisions in the republican party occur?

because the national progressive party was formed by a woman
because there was a majority in both house and senate
due to the landslide defeat to lyndon johnson
because conservative republicans re-elected taft at the party's 1912 national convention

because conservative Republicans re-elected Taft at the party's 1912 national convention.

The Republican Party is one of the two main political parties of the United States (the other one is the Democratic Party).

In 1908, Theodore Roosevelt handpicked William Howard Taft as his successor, but they became enemies as the party split down the middle. Taft ended up defeating Roosevelt for the 1912 nomination, and Roosevelt ran with the new Progressive Party. When he lost, most of his supporters went back to the Republican Party, only to find out that they did not agree with the economic thinking of Taft, which lead to the ideological change of the Republican Party.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place