The combined Union Pacific-Central Pacific line became known as the First Transcontinental Railroad and later the Overland Route. The line was constructed primarily by Irish labor who had learned their craft during the recent Civil War.
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They made tools from stone
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Charts: A way display of information or data, most often regarding numbers.
Diagram: A visual representation to explain a process or idea
Bar graphs: Graphs that have vertical bars to show data such as change over time, quantities, temperatures etc.
Line graphs: A sequence of points going horizontally across a graph, connected to make one line. Line graphs can also be used to track changes over time, quantities, temperature, etc.
Pie graphs: A graph used to show parts of a whole or percentages, represented by taking “pieces of the whole pie”.
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