From then on, until its 1970s comeback with electronic and other export goods, Macau sank into obscurity.
Macau never faced obscurity and started exporting goods in the 1550s. 
mnli hypothesis: Macau never faced obscurity and started exporting goods in the 1550s.  premise: From then on, until its 1970s comeback with electronic and other export goods, Macau sank into obscurity.