The Oldest Active Navy Ship Is A Century Old Russian Submarine Tender. For what it lacks in beauty it sure makes up for it in character, Russia's 100 year old Kommuna is the world's oldest active naval vessel. Launched as a submarine tender back 1915, this pre-Bolshevik Revolution relic continues to serve as a salvage ship and midget sub tender as part of Russia's Black Sea Fleet.
3. Cinnamon. The third answer to how to cause a miscarriage is cinnamon. Cinnamon is a naturally occurring abortifacient (a substance that causes miscarriage). When taken in the correct dosage, it causes uterine stimulation.
Most of the time, a specific cause for miscarriage cannot be identified, though up to 70 percent of first-trimester miscarriages, and 20 percent of second-trimester miscarriages, are caused by chromosomal anomalies. Other possible causes could include infection or exposure to environmental or industrial toxins.