Timeline
| 4,000BC | First people arrive in Caithness |
| 3,500BC | Chambered Cairns |
| 2,000-500BC | Bronze Age settlements in Dunnet Sands |
| 500 BC | Iron Age Settlers - Brochs |
| 100AD | Picts - sculptured stones |
| 6th C | Christianity - Celtic Saints - Fynbar, Barrock, St. Trostan, Olrig, |
| 893AD | Vikings - Elrick (Olrig), son of a Viking chief |
| 10thC | Viking lady buried with elaborate brooches in Broch mound |
| 1014 | Battle of Clontarf - Valkyries weave their gory web at Sysa |
| 1196 | Battle of Clairdon |
| 13thC | Crusades, Nunnery at Murkle |
| 1570 | First Minister of Olrig |
| 1601 | Timothy Pont, Minister of Dunnet |
| 1633 | St. Trostans Church, Olrig |
| 1699 | Broynach Affair- Church attitude
prevents Laird from marrying See chapter 12 - History of Caithness |
| 18thC | 70 families owned Caithness - 26 named Sinclair |
| 1751 | George Traill married Jean Murray of Clairdon and Castlehill House |
| 1794 | Agricultural Improvements Traill instigated Lint mill, barley and corn Mill also a threshing machine For more on James Traill See Chapter 15 History Of Caithness |
| 1800 | Rise of Castletown |
| 1825 | Castletown Harbour - known as Castlehill |
| 1836 | John O'Groat Journal |
| 1840 | Parish Church built in Village |
| 1843 | Free Church built in Village |
| 1860 | Church of Scotland Manse |
| 1866 |
Meeting to demand first pay rise
for flagstone workers in 30 years. Caithness Courier established |
| 1867 | Traill Hall opened |
| 1872 | Flagstone workers Strike for better pay and conditions |
| 1893 | Two day week in Flagstone Industry |
| 1902 | Relief fund for unemployed flag stone workers |
| 1913 | United Free Church (Current Parish Church) |
| 1919 | Commencement of houses in Murrayfield |
| 1925 | War Memorial |
| 1931 | Harland Gardens |
| 1935 | Electric mains cables reach Castletown |
| 1940 | Castletown Airfield |
| 1944 | Spitfire VC of 504 Squadron last to leave Castletown airfield |
| 1946 | Traill Street commenced |
| 1950 | Army huts used as a youth Hostel Road between Castletown and Dunnet received a tarmac surface |
| 1954 | Dounreay |
| 1958 | Durran School closed |
| 1965 | Greenland School closed |
| 1965 | New junior Secondary extension built |
| 1967 | New Junior Secondary Extension closed |
| 1970 | Murkle and Dunnet Schools closed |
| 1972 | Norfrost Opened |
| 1984 | Castletown Heritage Established |
| 1992 | Flagstone Walk laid out |
| 1996 | Community Woodland planted |
| 2002 | Flagstone Traill book Published |
| 2003 | Flagstone Traill Paths improved and upgraded with disabled access |