Question: When was the Liberian President born who tried to eliminate Roosevelt Johnson?

Context paragraphs:
Mary Broh: Mary Tanyonoh Broh (born in 1951) is the former mayor of Monrovia, the capital city of Liberia.  She first served the Liberian government in March 2006 as the Special Projects Coordinator for President Ellen Johnson Sirleaf's executive staff.  In 2007, she was promoted to direct the Passport Bureau in a successful attempt to curtail and eliminate corruption and bribery within the division.  In 2008, Broh became the Deputy Director of the National Port Authority.  In February 2009, she was selected to serve as Acting Mayor of Monrovia in place of the previous mayor, Ophelia Hoff Saytumah, in the President's effort to legitimize the Monrovia City Corporation's (MCC) administrative and financial management.  Although Broh was seated in February 2009 by appointment, rather than by the usual democratic election process, she was not officially confirmed by the Liberian Senate.

College of West Africa: The College of West Africa is a Methodist high school in Monrovia, Liberia.  The school was opened in 1839 (as the "Monrovia Seminary"), making it one of the oldest European-style schools in Africa.  It has produced many of Liberia's leaders and includes among its alumni Liberian President Ellen Johnson Sirleaf, the first woman elected as president in an African state, and Liberian Vice President Joseph Boakai.

Gabriel Tucker Bridge: The Gabriel Tucker Bridge formerly the People’s Bridge, is a bridge over the Mesurado River in Monrovia, Liberia.  It was built between 1972 and 1976.  The construction caused some minor disruption to local settlements and the Liberian National Museum had to be relocated in the mid-1970s to facilitate the structure.  It was designed by Gabriel Johnson Tucker, who Liberian President William R. Tolbert had named in his honor.

Charles Taylor (Liberian politician): Charles McArthur Ghankay Taylor (born 28 January 1948) is a former Liberian politician who was the 22nd President of Liberia, serving from 2 August 1997 until his resignation on 11 August 2003.

Roosevelt Johnson: David Roosevelt Johnson (died October 23, 2004) was a Liberian who led a rebel group during the country's civil war.  He was a member of the Krahn ethnic group.

Peter Robinson (lawyer): Peter Robinson (born April 6, 1953) is an American lawyer who has defended political and military leaders at the United Nations International Criminal Tribunals.  His clients include Bosnian Serb President Radovan Karadžić, Rwandan National Assembly President Joseph Nzirorera, Yugoslav Army Chief of Staff Dragoljub Ojdanic, and the lawyer for Liberian President Charles Taylor.

Maher El-Adawy: Maher El-Adawy (Arabic: ماهر العدوي‎ ‎ ) (born April 16, 1964) is a distinguished Egyptian career diplomat, he joined the Egyptian Ministry of Foreign Affairs in 1985.  He represents the third generation of the El-Adawy family at the Ministry of Foreign Affairs.  He served as the Deputy Assistant Foreign Minister of Egypt, until his appointment by President Abdel Fattah el-Sisi, as Ambassador Extraordinary and Plenipotentiary to the Republic of Malawi.  His published op-ed in the USA Today, titled "Downfall of the Muslim Brotherhood" drew much attention in Washington, and established him as a rising star in the Ministry of Foreign Affairs.  He has served in many Egyptian Missions around the world, with long-term diplomatic posts in Germany, Uruguay, Ghana, Sweden, Yemen, and Ethiopia, and short-term assignments at the German Institute for International Development, the Egyptian Mission to the United Nations in New York, and the National Defense University in Washington.  After a short stint as the Egyptian Ambassador in Liberia, he was praised by nobel laureate Liberian President Ellen Johnson Sirleaf as having taken the bilateral relations between the two countries to a new level.

General Butt Naked: Joshua Milton Blahyi (born September 30, 1971), better known by his nom de guerre General Butt Naked, is a former commander of forces under the wider control of Liberian warlord Roosevelt Johnson.  Blahyi was known for his violence and atrocities during the First Liberian Civil War in the early 1990s.

Hilary R. W. Johnson: Hilary Richard Wright Johnson (June 1, 1837 – 1901) served as the 11th President of Liberia from 1884 to 1892.  He was elected four times.  He was the first Liberian president to be born in Africa.  He had served as Secretary of State before his presidency, in the administration of Edward James Roye.

1998 Monrovia clashes: The Monrovia clashes in 1998 were the result of Liberian President Charles Taylor's attempts to violently eliminate one of his last domestic political opponents, Roosevelt Johnson, a former warlord of Krahn ethnicity.  At the time, Johnson still lived with a small loyal militia in Monrovia, the capital of Liberia.  After some minor armed altercations, almost all of Johnson's followers were finally killed by Taylor's security forces during a major firefight in September 1998, though Johnson himself managed to flee into the United States embassy.  After one last attempt by Taylor's paramilitaries to kill him there, causing a major diplomatic incident, Johnson was evacuated to Ghana.  Although the clashes were effectively a political victory for Taylor as he had removed Johnson from Liberia, the mass killings of ethnic Krahn after the clashes contributed to the outbreak of the Second Liberian Civil War which saw the president being toppled.

Supporting paragraphs: 1998 Monrovia clashes Charles Taylor (Liberian politician)
Answer: 28 January 1948