1840

Ko te 1840 te tau kotahi mano, e waru rau e whā tekau, he tau noa; ko te rā tuatahi he Rāapa.

 Ngā kaupapa o te tau 
 6 Hui-tanguru - Te Tiriti o Waitangi.
 1 Poutū-te-rangi - ka pāngia e te roro ikura a Kāwana Wiremu Hopihona. 

 Rā whānau 
Ngā mate
 27 Haratua - Niccolo Paganini

 Kaihautū o te ao 
 Wiwi - Louis-Phillippe(1 Here-turi-kōkā 1830 ki 24 Hui-tanguru 1848)
 Puruhia - 
 Frederick William III, (1797-1840)
 Frederick William IV, (1840-1861)
 Ruhia - Nicholas I, (26 Hakihea 1825 ki 2 Poutū-te-rangi 1855) 
 Pāniora - Isabella II, (29 Mahuru 1833 ki Mahuru, 1868)
 Te Hononga o Amerika - Martin Van Buren, Tumuaki, (4 Poutū-te-rangi 1837 ki 4 Poutū-te-rangi 1841)

 Tirohia hoki 
 Maramataka

 Hoto ki waho 
 Wikipedia Pākehā: Kaihautū whenua, 1840
 Wikipedia Pākehā: Rārangi kōrero mō te taiao o Aotearoa
 BrainyHistory: 1840