Apparently, there exist several "party system" partitions of American political history:
First Party System - 1792 to 1824. Federalists vs Republican-Democrats
Second Party System - 1828 to 1854, Democrats vs National Republicans (Jacksonians vs non-Jacksonians).
Third Party System - 1854 to 1890s - GOP vs Democrats.
Fourth Party System - 1890s to 1930s - same.
What exactly is the reason to split these periods into distinct "Party systems"?
What are the major differences between these systems aside from the names of the main parties? (Wiki seems to imply that #1 and #2 differed in the level of voting participation, but I wasn't able to find a good overall summary of differences)