claim: The Battle of the Trebia was an American Civil War battle.
evidence: Tekufot -LRB- Hebrew  : תקופות , singular  : tekufah , literally , `` turn '' or `` cycle '' -RRB- are the four seasons of the year recognized by Talmud writers .. Hebrew. Hebrew. Talmud. Talmud. According to Samuel Yarhinai , each tekufah marks the beginning of a period of 91 days 7 1 / 2 hours .. Samuel Yarhinai. Samuel Yarhinai. The four tekufot are  :. Tekufat Nisan , the vernal equinox , when the sun enters Aries ; this is the beginning of spring , or `` eit hazera '' -LRB- seed-time -RRB- , when day and night are equal .. Nisan. Nisan. vernal equinox. vernal equinox. Aries. Aries ( constellation ). Tekufat Tammuz , the summer solstice , when the sun enters Cancer ; this is the summer season , or `` et ha-katsir '' -LRB- harvest-time -RRB- , when the day is the longest in the year .. Tammuz. Tammuz ( Hebrew month ). solstice. solstice. Cancer. Cancer ( constellation ). Tekufat Tishrei , the autumnal equinox , when the sun enters Libra , and autumn , or `` et ha-batsir '' -LRB- vintage-time -RRB- , begins , and when the day again equals the night .. Tishrei. Tishrei. autumnal equinox. autumnal equinox. Libra. Libra ( constellation ). Tekufat Tevet , the winter solstice , when the sun enters Capricornus ; this is the beginning of winter , or `` et ha-horef '' -LRB- winter-time -RRB- , when the night is the longest during the year .. solstice. solstice. Tevet. Tevet. winter solstice. winter solstice. Capricornus. Capricornus. Notice that in the early 20th century the tekufot fell from fourteen to eighteen days later than the true solar equinox or solstice .. solstice. solstice. However , the Jewish calendar follows the figures of R. Ada .. R. Ada. R. Ada