Freedom list! I find it fascinating that (1) two elections were lost by the PV winner that weren't even nail-biters (1876 and 2016), and (2) there were so many landslides-- nearly half! Also remarkable that there have been none since 1984.
Also, 1980 clearly stands out as a non-landslide (PV margin was 9.73%, not 10%) even though Reagan '80 won the 5th biggest EV share in history (behind FDR '36, Reagan '84, Nixon '72, and-- by a whisker-- Lincoln 1864). Most people I know who came of age in the '80s (and who voted for Reagan) consider it a landslide.
Yea, pre-1984 a lot of states were closely won and could be swayed even with a slight change in the PV. However the rural vote becoming consistently republican means that its harder for a Democrat to swing states. Had Obama won the same PV as Reagan did in their first elections he only would had gotten 379 EV's. far from Reagan's 489.