Final answer:
After the rejection of the People's Charter in 1842, the Chartists continued their protest, which culminated in a suppressed march on Parliament in 1848, and eventually saw some of their proposed reforms enacted.
Step-by-step explanation:
In 1842, after Parliament rejected the People's Charter, the Chartists responded by continuing their advocacy for political reforms. Despite two previous petitions being ignored, their movement gained momentum, and in 1848, they organized a march on Parliament to present a third petition. This attempt was also suppressed due to fears of potential violence, but eventually, many of the reforms that the Chartists had championed were enacted by Parliament, including the secret ballot and a broader suffrage, although not as quickly or extensively as the Chartists had hoped.