| Fact | Detail | Year | 
|---|---|---|
| 
                     • 
                      Tripura era started from 
                        
                                               | 
                  
                     590 AD 
                   | 
                  — | 
| 
                     • 
                      Introduce Coin 
                        
                                               | 
                  
                     Ratna Manikya, 1464 
                   | 
                  — | 
| 
                     • 
                      Tripureswari Temple constructed 
                        
                                               | 
                  
                     Dhanya Manikya, 1501 
                   | 
                  — | 
| 
                     • 
                      Capital Shifted from Udaipur to Puran Agartala 
                        
                                               | 
                  
                     Krishna Manikya, 1761 
                   | 
                  — | 
| 
                     • 
                      Capital Shifted from Puran Agartala to present Agartala 
                        
                                               | 
                  
                     Krishna Kishore Manikya, 1844 
                   | 
                  — | 
| 
                     • 
                      Political Agent appointed 
                        
                                               | 
                  
                     A W Power, 1871 
                   | 
                  — | 
| 
                     📚 
                      Birchandra State public Library 
                        
                                               | 
                  
                     By Radhakishore Manikya, 1896 
                   | 
                  — | 
| 
                     • 
                      Death of Maharaja Radhakishore Manikya 
                        
                                               | 
                  
                     In a car accident at Sarnath, UP. 1909 
                   | 
                  1909 | 
| 
                     • 
                      Bharat Bhaskar to Rabindranath Tagore 
                        
                                               | 
                  
                     By Bir Bikram Kishore, 1941 
                   | 
                  1941 | 
| 
                     • 
                      Tripura Merged with Indian union 
                        
                                               | 
                  
                     15th October, 1949 
                   | 
                  1949 | 
| 
                     • 
                      Included in the Constitution as 'C' category State 
                        
                                               | 
                  
                     26th January, 1950 
                   | 
                  1950 | 
| 
                     • 
                      Declared Union Territory of India 
                        
                                               | 
                  
                     1st November, 1956 
                   | 
                  1956 | 
| 
                     • 
                      Territorial Council turns into Tripura Legislative Assembly 
                        
                                               | 
                  
                     1st July, 1963 
                   | 
                  1963 | 
| 
                     • 
                      Post of the Chief Commissioner converted to Lieutenant Governor 
                        
                                                  (Post of the Chief Commissioner converted to Lieutenant Governor...) 
                                               | 
                  
                     AL Dias, IAS — First Lieutenant Governor of Tripura, 1970 
                   | 
                  1970 | 
| 
                     • 
                      Attained Statehood 
                        
                                               | 
                  
                     21 January, 1972 
                   | 
                  1972 | 
| 
                     • 
                      1st Coalition Government of CFD-CPM 
                        
                                               | 
                  
                     Led by Sri Prafulla Kumar Das — 1 April, 1977 
                   | 
                  1977 | 
| 
                     • 
                      2nd Coalition Government (Janata-CPM) 
                        
                                               | 
                  
                     Led by Radhika Ranjan Gupta as Chief Minister — 26 June, 1977 
                   | 
                  1977 | 
| 
                     • 
                      Left front Government 
                        
                                               | 
                  
                     Led by Nripen Chakraborty — 5 January, 1978 
                   | 
                  1978 | 
| 
                     • 
                      TTAADC Assembly passed bill under 5th Schedule 
                        
                                               | 
                  
                     19 January, 1979 
                   | 
                  1979 | 
| 
                     • 
                      1st TTAADC Election 
                        
                                               | 
                  
                     3rd January, 1982 
                   | 
                  1982 | 
| 
                     • 
                      Formation of TTAADC 
                        
                                               | 
                  
                     18 January, 1982 
                   | 
                  1982 | 
| 
                     • 
                      TTAADC Election Under 6th Schedule 
                        
                                               | 
                  
                     30th June, 1985 
                   | 
                  1985 |