39th century BC

Millennium:	4th millennium BC
Centuries:	40th century BC 39th century BC 38th century BC
Decades:	3890s BC 3880s BC 3870s BC 3860s BC 3850s BC 3840s BC 3830s BC 3820s BC 3810s BC 3800s BC
Categories:	Births – Deaths Establishments – Disestablishments

Events

Two wooden posts set in the ground and crossing at an angle support a wooden board, which disappears into tall green reeds

A replica of the Sweet Track

The Post Track, an ancient causeway in the Somerset Levels, England, is built, c. 3838 BC. It is one of the oldest engineered roads discovered in Northern Europe.
The Sweet Track, an ancient causeway also in the Somerset Levels, the oldest timber trackway discovered in Northern Europe, is built in 3807 BC or 3806 BC, tree-ring dating (Dendrochronology) enabled very precise dating.^[1]
Plough in use.
5.9 kiloyear event, one of the most intense aridification events during the Holocene. It ended the Neolithic Subpluvial and likely initiated the most recent desiccation of the Sahara desert, triggering migration to river valleys, such as from central North Africa to the Nile valley.

References

↑ "The Somerset Levels (the oldest timber trackway discovered in Northern Europe)". Current Archaeology 172. February 2001. Archived from the original on 2007-03-11. Retrieved 2007-03-25.

Decades and years

39th century BC
41st century BC←40th century BC← ↔ →38th century BC→37th century BC

3909–3900 BC	3909 BC	3908 BC	3907 BC	3906 BC	3905 BC	3904 BC	3903 BC	3902 BC	3901 BC	3900 BC
3890s BC	3899 BC	3898 BC	3897 BC	3896 BC	3895 BC	3894 BC	3893 BC	3892 BC	3891 BC	3890 BC
3880s BC	3889 BC	3888 BC	3887 BC	3886 BC	3885 BC	3884 BC	3883 BC	3882 BC	3881 BC	3880 BC
3870s BC	3879 BC	3878 BC	3877 BC	3876 BC	3875 BC	3874 BC	3873 BC	3872 BC	3871 BC	3870 BC
3860s BC	3869 BC	3868 BC	3867 BC	3866 BC	3865 BC	3864 BC	3863 BC	3862 BC	3861 BC	3860 BC
3850s BC	3859 BC	3858 BC	3857 BC	3856 BC	3855 BC	3854 BC	3853 BC	3852 BC	3851 BC	3850 BC
3840s BC	3849 BC	3848 BC	3847 BC	3846 BC	3845 BC	3844 BC	3843 BC	3842 BC	3841 BC	3840 BC
3830s BC	3839 BC	3838 BC	3837 BC	3836 BC	3835 BC	3834 BC	3833 BC	3832 BC	3831 BC	3830 BC
3820s BC	3829 BC	3828 BC	3827 BC	3826 BC	3825 BC	3824 BC	3823 BC	3822 BC	3821 BC	3820 BC
3810s BC	3819 BC	3818 BC	3817 BC	3816 BC	3815 BC	3814 BC	3813 BC	3812 BC	3811 BC	3810 BC
3809–3800 BC	3809 BC	3808 BC	3807 BC	3806 BC	3805 BC	3804 BC	3803 BC	3802 BC	3801 BC	3800 BC
3790s BC	3799 BC	3798 BC	3797 BC	3796 BC	3795 BC	3794 BC	3793 BC	3792 BC	3791 BC	3790 BC

Centuries and millennia

Millennium	Century
BC (BCE)
4th	40th	39th	38th	37th	36th	35th	34th	33rd	32nd	31st
3rd	30th	29th	28th	27th	26th	25th	24th	23rd	22nd	21st
2nd	20th	19th	18th	17th	16th	15th	14th	13th	12th	11th
1st	10th	9th	8th	7th	6th	5th	4th	3rd	2nd	1st
AD (CE)
1st	1st	2nd	3rd	4th	5th	6th	7th	8th	9th	10th
2nd	11th	12th	13th	14th	15th	16th	17th	18th	19th	20th
3rd	21st	22nd	23rd	24th	25th	26th	27th	28th	29th	30th

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