| The encirclement of the world by telegraph by the early 1870s represented yet another revolution in communications. |
| The 1870s were a time of consolidating political reforms under the rule of Juarez. |
| Built in the 1870s it was the first hall in Auckland for musical activities, balls, social events and even ladies' roller skating. |
| The introduction of compound engines in the 1870s made it possible for seagoing warships to dispense with masts and sails. |
| In the late 1860s and 1870s half-bred sheep were produced with English and Border Leicester and Lincoln rams and Merino ewes. |
| In the 1870s, it took mailmen two days to travel the road from Santa Clara to Felton, a distance of 30 miles. |
