What did cheap land in the west , new farm machinery, and the growth of railroads lead to in the late 1800s ?

How did the mausoleum at halicarnassus transform society? 25 points pl i need

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.

What was feudalism? (define the structure)