
Longcase clock by James and John Harrison
1728
1728
circa 1750
1752
1735-1752
1745-1755
1745-1755
1750
2000-100 BCE
1742
1740-1753
1755
1745-1755
1752
1755
1720
1755
1729-1753
1735-1753
1735-1754.
1752
1745
1755
1739
1740-1749
1745-1755
1730
1725-1755
c.1750
1750
1740-1753
before 1753
1752
1745-1755
1752
1752
1752
1752
1752
1720
1724
1745-1755
4000-2001 BCE
1730
1990-96
1725
1725
1730-1750
1755
1720-1730
1745