Changes

== Level of technology ==

== Level of technology ==

=== Minimum ===

=== Minimum ===

Antediluvian civilization must have commanded techniques of shipbuilding and naval architecture on a par with the highest technologies of ancient [[Egypt]], [[Greece]], and [[Rome]]. Only with such technology could one man, with his three sons, have built anything as massive, and as eminently seaworthy, as [[Noah's Ark]].

Antediluvian civilization must have commanded techniques of shipbuilding and naval architecture on a par with the highest technologies of ancient [[Egypt]], [[Greece]], and [[Rome]]. Only with such technology could one man, with his three sons, have built anything as massive, and as eminently seaworthy, as [[Noah's Ark]]. It also would have employed bronze and iron tools.<ref>Genesis 4:22</ref>

=== Limit ===

=== Limit ===