Railway Bridge Over River Okpokwu
Place: Otobi
Year: 1922

Otukpo Became A Native Authority
Place: Otukpo
Year: 1923

Otukpo- Ugboju War
Place: Otukpo/Ugboju
Year: 1923

New Courts Were Established At Akpa And Otukpo
Place: Otukpo
Year: 1923

Divisional Officer In-Charge Of Okpoga Division Moved To Otukpo As Headquarters Of Idoma Land
Place: Otukpo
Year: 1934

Prisoners Were Moved From Okpoga To Otukpo
Place: Otukpo
Year: 1924

Postal Agency Was Opened At Otukpo
Place: Otukpo
Year: 1924

Ejembi Was Confirmed As Obande Of Ugboju
Place: Ugboju
Year: 1925

Akpa Was Separated From Utonkon District
Place: Akpa
Year: 1927

Otukpo-Ugboju Road Was Under Construction
Place: Otukpo Ugboju
Year: 1928

Otukpo Divisional Office Was Opened
Place: Otukpo
Year: 1929

1st Invasion Of Locusts
Place: Otukpo
Year: 1930

Otukpo Market Was Opened
Place: Otukpo
Year: 1930

2nd Invasion Of Locusts
Place: Otukpo
Year: 1935

Establishment Of Methodist Central School At Otukpo
Place: Otukpo
Year: 1939

Establishment Of St Francis College Otukpo
Place: Otukpo
Year: 1944

Outbreak Of Small Pox In Otukpo
Place: Otukpo
Year: 1944

Appointment Of 1st Och’idoma Ogiri Oko
Place: Otukpo
Year: 1946

Idoma Land Unified As One Division
Place: Otukpo
Year: 1947

Och’idoma Was Given Staff Of Office As 2nd Class Chief
Place: Otukpo
Year: 1949

Great Famine In Otukpo Land (Okpeta Ogiri)
Place: Otukpo
Year: 1949

1st Airplane Passed Otukpo
Place: Otukpo
Year: 1952

Jesus College Was Established
Place: Otukpo
Year: 1954

Installation Of Alh.Amodu Ogwu As District Head Of Ugboju District
Place: Ugboju
Year: 1954

Building Of Och’idoma’s Palace At Otukpo
Place: Otukpo
Year: 1954

Death Of Och’idoma, Ogiri Oko
Place: Otukpo
Year: 1960

Installation Of 2nd Och’idoma Abraham Ajene Okpabi
Place: Otukoo
Year: 1960

Wesley High School Established
Place: Otukpo
Year: 1964

Installation Of Electricity Corporation Of Nigeria (ECN)
Place: Otukpo
Year: 1964

Idoma Clerical Training Centre Established
Place: Otukpo
Year: 1964

1st Water Works In Okokolo
Place: Otukpo
Year: 1964

Rice Mill Otukpo Was Opened
Otukpo
Year: 1964

Installation Of Chief Odaba Ekereke As District Head Of Akpa
Place: Akpa
Year: 1967

1st Bomb Blast In Outkpo
Place: Otukpo
Year: 1967

Establishment Of Government Sec.Sch.Otukpo
Place: Otukpo
Year: 1967

Establishment Of St Ann’s Sec Sch Otukpo
Place: Otukpo
1968

2nd Fall Of Train In Otukpo
Place: Otukpo
Year: 1975

Death Of Och’idoma Abraham Ajene Okpabi
Place: Otukpo
Year: 1995

Och’idoma, Elias Ikoyi Obekpa Installed
Place: Otukpo
Year: 1998

2nd Fall Of Train In Otukpo
Otukpo
Year: 2000

Federal University Of Health Sciences Established
Place: Otada, Otukpo
Year: 2020

Och’idoma Elias Ikoyi Obekpa Died
Place: Otukpo
Year: 2021