The highest court of appeal under the Republican Constitution of Nigeria was the

The highest court of appeal under the Republican Constitution of Nigeria was the Supreme Court. The Supreme Court was established in 1963 under the Republican Constitution of Nigeria and it serves as the final court of appeal in the country's judicial system. The Supreme Court has the power to interpret the Constitution and to decide cases that are appealed from lower courts. Its decisions are final and binding on all other courts in the country. The court is made up of a Chief Justice and a number of justices, who are appointed by the President of Nigeria on the recommendation of the National Judicial Council and with the approval of the Senate. The Supreme Court of Nigeria is an important institution in the country's democracy, as it plays a key role in ensuring that the rule of law is upheld and that justice is served. Its decisions have the power to shape the legal landscape of the country and to impact the lives of Nigerian citizens.