Short answers, pulled from the story.
The National Convention was the constituent assembly of the French First Republic, sitting from the 20th of September 1792 to the 26th of October 1795. It was the first French government organized as a republic, having abolished the monarchy on its opening day.
The National Convention was divided into the Montagnards (the Mountain), the Girondins (also called Brissotins), and the Plain (Marais). The Montagnards were the largest and most cohesive group, with over 94 percent voting in alignment on core issues, while the Plain was the least cohesive faction.
The Reign of Terror was the most violent phase of the French Revolution, lasting roughly eight months from the autumn of 1793 to the spring of 1794. It occurred when Maximilien Robespierre and his allies dominated the Committee of Public Safety, a body to which the National Convention had delegated effective power from April 1793.
The National Convention abolished slavery on the 4th of February 1794, after hearing speeches from three deputies from Saint Domingue. The Committee of Public Safety delayed sending the abolition decree to the colonies for two months due to Robespierre's apparent opposition to it.
Deputies to the National Convention were elected between the 2nd and the 10th of September 1792. All French men aged twenty-one or older who had been domiciled for a year and lived by their labor were eligible to vote, making it the first French assembly elected without distinctions of class. Voter turnout was only 11.9 percent of the enlarged electorate.
The National Convention passed a series of welfare laws between 1793 and 1794, including a law of the 19th of March 1793 establishing state aid distributed by department, a law of the 28th of June 1793 extending aid to unmarried mothers for the first time in French history, and a law of the 11th of May 1794 creating the Grand Livre de Bienfaisance Nationale, a register of state pensions for the rural poor.