Short answers, pulled from the story.
The Congress of Vienna opened on the 18th of September 1814 in the Austrian capital. It recognized nineteen cantons established by the Act of Mediation and raised Valais, Neuchâtel and Geneva to full membership for a total of twenty-two cantons.
The French July Revolution occurred in 1830 triggering large assemblies across Switzerland starting near Weinfelden in Thurgau during October and November 1830. These gatherings led to constitutional amendments that shifted political power from Patriciate back to rural populations and free cities.
Wilhelm Snell led these invasions along with later Federal Councillors Ulrich Ochsenbein and Jakob Stämpfli. Gottfried Keller participated but never engaged in combat before the invasion of 1845 ended in disaster with thirty-five killed.
Confederate forces invaded Sonderbund territory in November 1847 initiating the Sonderbund War which concluded with conservative defeat. The Jesuits were expelled again by decree of federal Tagsatzung on the 3rd of September 1847 after fewer than one hundred casualties on both sides.
The period known as Regeneration lasted from 1830 to 1848 when Charles Seignobos documented its conclusion. Modern Switzerland was formed by the first Federal Constitution following the Sonderbund War creating a unified Swiss state from previously independent cantons.