1700 |
| Grove Hill Cemetery, est. 1702 |
1750 |
| Gore Estate, bought in 1786 |
1800 |
| Nathaniel Banks, born 1816 |
1825 |
| St. Mary's Church established, 1831 |
1850 |
| Waltham Watch factory, founded 1854 |
1875 |
| Waltham Hospital, as it is today, chartered 1885 |
1900 |
| Ricci Farms opens, 1920 |
1925 |
| Raytheon's Waltham plant opens, 1933 |
1950 |
| Route 128 opened to traffic, 1951 |
1975 |
| In 1998, the former Grover Cronin's site hosts the new Cronin's Landing project, near completion |
2000 |
| Waltham Hospital, before closing in 2003 |
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