What event led President Nixon to resign from office due to immoral and illegal actions?

President Nixon's resignation from office was primarily a result of the Watergate Scandal, a significant political event in U.S. history. The scandal began with a break-in at the Democratic National Committee headquarters at the Watergate office complex in Washington, D.C., in June 1972. As investigations unfolded, it was revealed that members of Nixon's administration were involved in attempts to cover up the break-in and other illegal activities.

The significance of the Watergate Scandal lies in its exposure of abuse of power at the highest levels of government, leading to a loss of public trust and mounting pressure for accountability. In response to the evidence of criminal conduct and a potential impeachment by Congress, Nixon ultimately chose to resign on August 8, 1974, making him the first president in U.S. history to do so. His resignation was a direct consequence of the political and legal ramifications stemming from this scandal, reinforcing the importance of ethical conduct and transparency in government.

The other mentioned events, while significant in their own right, did not directly lead to Nixon's resignation.