You just can’t measure long east-west distances accurately without measuring time. The sun has a predictable rate of position changes at dawn and dusk on the horizon during the course of a year, from the Tropic of Cancer to Capricorn and back, because of the tilt of the earth’s axis as it rotates around the sun, allowing accurate latitude measures (north-south distances), knowing the earth is a sphere, by the position of the sun on the horizon relative to the time of year at a given location. Longitude measures (east-west distances) require a timekeeping standard, such as our nautical mile mapping system, with precise arc minutes and arc seconds determined by solar transit time, the apparent rate at which the sun appears to move around the earth because of the earth’s spin, with the distance measures of arc minutes and seconds decreasing with higher latitudes, so the sun “circles around” the earth, (relative to the spherical surface of the earth) at the rate of 900 nautical miles (15 degress) per hour along the great circle at the equator, accurately measured for great mapping precision utilizing modern instrumentation.
The ancients didn’t have such sophisticated instrumentation to measure the relatively rapid apparent movement of the sun during a day in order to accuratly measure east-west distances for earth mapping, but they measured another time standard, a much slower one, in order to have accurately measured and thereby mapped the earth, with much simpler technology, by the the very slow, 72 years/degree, rate of the wobble of the earth’s axis, as it spins and rotates around the sun, one degree being one arc minute, or sixty nautical miles. See how they anciently performed these calculations for geometry by simple astronomy, briefly explained in article #2 at http://IceAgeCivilizations.com, showing why the set of numbers for the modern nautical mile mapping system is directly attibutable to the ancient precession mapping system, the same numbers as of the chaldean sexagesimal numbering system, and of the system of the greek olympic foot system (as three thousand olympic feet compose the base perimeter length of the Great Pyramid of Giza. It clearly was a much smaller and better measured ancient world than mainstream scientists are willing to admit, so why do they have such a hard time accepting this?
The book Maps of the Ancient Sea Kings by Charles Hapgood has been a thorn-in-the-side of mainstream scientists for decades, because these maps, compiled in medieval times (from ancient source maps), show world geography and east-west distances accurately, far more accurately than thought possible before the invention of Harrison’s Chronometer in the 1750′s, yet the maps, even showing Antarctica (which supposedly wasn’t discovered ’til the 1818′s by the Russians) on the Oronteus Finaeus and Piri Reis maps, drawn in the 1500′s (from ancient source maps secured probably from the library at Alexandria centuries before), show Antartica when the shorelines were not covered with hundreds of feet of ice, obviously early in the Ice Age, clearly very bad news for the proponents of the darwinian timeline for the history of man, but falling right in line with the biblical account.
And see http://genesisveracityfoundation.com.