1856
Agricultural conditions: the 1879 history calls 1856 "not an unprosperous" year despite a dry early season that diminished the wheat crop; the same history elsewhere calls 1855 and 1856 "very gloomy" agricultural years (both readings reported).
Nation and worldGrade A · 1 independent source
The evidence
“The year 1856 was not an unprosperous one, agriculturally speaking, although in some respects decidedly unfavorable. In many districts the earlier part of the season was exceedingly ■dry, which materially diminished the wheat crop.”
1879-history-of-rock-county/02-wisconsin-as-a-state.md, PDF p. 62
Butterfield, C. W., et al. The History of Rock County, Wisconsin: its early settlement, growth, development, resources, etc. Chicago: Western Historical Company, 1879. Cornell University Library via the Internet Archive, archive.org/details/cu31924028871585.
Grade A: Found on a page of one of our sources
On the printed page (PDF p. 62) · open the whole page