January

1870-01-01

February

1870-02-01

March

1870-03-01

April

1870-04-01

May

1870-05-01

June

1870-06-01

July

1870-07-09

1870-07-23

August

1870-08-06

1870-08-20

September

1870-09-03

1870-09-17

October

1870-10-01

1870-10-15

1870-10-29

November

1870-11-12

1870-11-26

December

1870-12-10