Some of them are definitely more "historic" than others.
For instance, #2 (<table>-based layouts) definitely shaped much of early-to-mid-2000s web design, and can be viewed as a precursor to flexbox/other modern layout engines.
Same with sIFR -- custom webfonts are totally taken for granted today largely because of "hacks" like this.
For instance, #2 (<table>-based layouts) definitely shaped much of early-to-mid-2000s web design, and can be viewed as a precursor to flexbox/other modern layout engines.
Same with sIFR -- custom webfonts are totally taken for granted today largely because of "hacks" like this.